MATH 221 Week 1 Homework: Statistics for Decision-Making (Collection)

(MATH 221 Week 1 Homework)

You’ll have to attempt 20 – Multiple Choice & Matching Questions during this week 1 homework test. For your better preparation, we have compiled multiple versions from recently taken homework tests. In the download, you’ll see correct answers for all the questions highlighted below: 

MATH 221 Week 1 Homework: Statistics for Decision-Making (April 2021-v0)

1. Question: The age of every fourth person entering a department store. The selected individuals would be considered a:
2. Question: The chances of winning the Maryland lottery are one chance in twenty-two million. The probability would … an example of:
3. Question: The milligrams of tar in 30 cigarettes would … :
4. Question: Marriage status (married, single, etc.) of the faculty at a university would … :
5. Question: Sixteen students are randomly … from each grade level at a high school and asked about their eating habits. This sampling technique is called:
6. Question: A researcher … a random sample of 100 smokers and a random sample of 100 non-smokers. After interviewing all 200 participants, the researcher compared the rates of depression between the two groups. This study design would be considered:
7. Question: Which of the following would … the mean of this data set: 5, 28, 12, 56, 4, 2, 30, 21
8. Question: Which of the following would … the variance of this population data set: 3, 6, 8, 9, 4, 5, 7, 1, 9, 7, 5, 4, 13, 9
9. Question: What is the relationship between variance and standard deviation?
10. Question: In a normally … data set with a mean of 24 and a standard deviation of 4.2, what percentage of the data would be between 15.6 and 32.4 and why?
11. Question: Which data outcome of the speed of cars would best support installing a speed bump?
12. Question: In manufacturing, convenience sampling could … to determine if the machines are operating correctly. Which of the following best describes this type of sampling?
13. Question: A graph shows a number line with a mark for each data value in the data set above its value. This graphic is most likely to be:
14. Question: Match the terms and their definitions
15. Question: Match the terms and their definitions
    

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MATH 221 Week 1 Homework: Statistics for Decision-Making (May 2020-v1)

1. Question: A recent survey of the alumni of the university … that the average salary of 10,000 of its 200,000 graduates was $130,000. The $130,000 would:
2. Question: In a survey of 1000 adults, 34% they found to … preferred charcoal to gas grills. The 1000 would:
3. Question: The chances of winning a Mary-land lottery are one in twenty-two million. The probability would … an example of:
4. Question: The milligrams of tar in 30 cigarettes would:
5. Question: If the data set included the color of cars in a parking lot, those data would:
6. Question: The compensation of all college graduates would:
7. Question: Every fifth person boarding a plane is asked additional security questions. This sampling technique is:
8. Question: A researcher obtained a random sample of 100 smokers and a random sample of 100 non-smokers. After interviewing all 200 participants, the researcher compared the rates of depression between the two groups. This study design would:
9. Question: Which of the following would … the mean of this data set: 5, 7, 12, 36, 14, 12, 33, 21
10. Question: Which of the following would … the standard deviation of this sample data set: 67, 54, 30, 77, 92, 41, 75, 81
11. Question: Which of the following would be the variance of this population data set 3, 6, 8, 9, 4, 5, 7, 1, 9, 7, 15, 4, 3, 1
12. Question: The difference between clustered sampling and stratified sampling would be:
13. Question: If data set A has a smaller standard deviation than data set B, what would be different about their distributions?
14. Question: In a normally distributed data set a mean of 55 where 99.7% of the data fall between 47.5 and 62.5, what would … the standard deviation of this data set?
15. Question: Which of the following data sets would you expect to have the highest standard deviation?
16. Question: Which data outcomes of the speed of cars would best support removing a speed camera?
17. Question: In manufacturing, stratified sampling could … to determine if the machines are operating correctly. Which of the following best describes this type of sampling?
18. Question: A graph shows vertical bars with the number of data points on the y-axis and groups on the x-axis. This graph is most likely to show:
19. Question: Match the terms and their definitions: (1) Vertical bar chart that shows frequency on the y-axis (2) A sample where the population is divided into groups and several groups are randomly selected from all from those selected groups are sampled (3) Collection of all counts that are of interest (4) A subset or part of a population (5) A sample where the population is divided into groups and several are randomly sampled form each group (6) Consists of attributes, labels, or non-numerical entries
20. Question: Match the terms and their definitions: (1) The most frequent number appearing in a dataset (2) The average (3) The percentage of data that falls within 1, 2, or 3 standard deviations of the mean in a symmetrical, bell-shaped distribution (4) The square root of the variance (5) Show how far a particular data point is from the mean in terms of the number of standard deviations

MATH-221 Week 1 Homework: Statistics for Decision-Making (May 2020-v2)

1. Question: A recent survey of the alumni of the university … that the average salary of 10,000 of its 200,000 graduates was $130,000. The $130,000 would:
2. Question: In a survey of 1000 adults, 34% they found to … preferred charcoal to gas grills. The 1000 would:
3. Question: The average age of students in a statistics class is 28 years. The 28 years would … an example of:
4. Question: The ages of 20 first graders would:
5. Question: The annual salaries for all teaching in Ohio would:
6. Question: The amount of fat in grams in 58 cookies would:
7. Question: A researcher randomly selects and interviews fifty males and fifty female teachers. This sampling technique is:
8. Question: Cameras are set up to watch an intersection and determine how many cars are let through with each green light interval. This study design would:
9. Question: Which of the following would … the mean of this data set: 5, 7, 12, 56, 4, 2, 33, 21
10. Question: Which of the following would … the standard deviation of this population data set:67, 54, 30, 77, 92, 41, 75, 81
11. Question: Which of the following would … the variance of this population data set: 3, 9, 8, 9, 4, 5, 7, 1, 9, 7, 5, 4, 3, 1
12. Question: What is the relationship between variance and standard deviation?
13. Question: If data set A has a larger mean than data set B, what would … different about their distributions?
14. Question: In a normally distributed data set with a mean of 24 and standard deviation of 4.2, what percentage of the data would … between 19.8 and 28.2 and why?
15. Question: Which of the following data sets would you expect to have the highest mean?
16. Question: Which data outcome of the number of customers inline would best support opening another cash register?
17. Question: In manufacturing, stratified sampling could … to determine if the machines are operating correctly. Which of the following best describes this type of sampling?
18. Question: A graph shows a number line with a mark for each data value in the data set above its value. This graphic is most likely to:
19. Question: Match the terms and their definitions: (1) Vertical bar chart that shows frequency on the y-axis (2) A sample where the population is divided into groups and several groups are randomly selected from all from those selected groups are sampled (3) Collection of all counts that are of interest (4) A subset or part of a population (5) A sample where the population is divided into groups and several are randomly sampled form each group (6) Consists of attributes, labels, or non-numerical entries
20. Question: Match the terms and their definitions: (1) The most frequent number appearing in a dataset (2) The average (3) The percentage of data that falls within 1, 2, or 3 standard deviations of the mean in a symmetrical, bell-shaped distribution (4) The square root of the variance (5) Show how far a particular data point is from the mean in terms of the number of standard deviations.
    

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MATH 221 Week 1 Homework: Statistics for Decision-Making (Jan 2020-v1)

1. Question: In a survey of 1000 adults, 34% found they prefer charcoal to gas grills. The 34% would … considered a:
2. Question: In a survey of 1000 adults, 34% found they prefer charcoal to gas grills. The 1000 would … considered a:
3. Question: The chances of winning the Maryland lottery are one chance in twenty- two million. The probability would … an example of:
4. Question: The hair color of the players on a tennis team would … considered:
5. Question: Marriage status (married, single, etc.) of the faculty at a university would be considered:
6. Question: The final grades for students in a statistics class would be considered:
7. Question: Five statistics classes out of 20 are selected and all the students in the selected classes are interviewed. This sampling technique is:
8. Question: Cameras are set up to watch an intersection and determine how many cars are let through with each green light interval. This study design would be considered:
9. Question: Which of the following would … the mean of this data set: 5, 28, 12, 56, 4, 2, 30, 21
10. Question: Which of the following would … the standard deviation of this sample data set: 67, 54, 30, 77, 92, 41, 75, 81
11. Question: Which of the following would … the variance of this population data set: 3, 6, 8, 9, 4, 5, 7, 1, 9, 7, 5, 4, 13, 9
12. Question: If a data set is right skewed, where would the mean … in relation to the mode?
13. Question: If data set A has a larger standard deviation than data set B, what would … different about their distributions?
14. Question: In a normally distributed data set with a mean of 24 and a standard deviation of 4.2, what percentage of the data would … between 15.6 and 32.4 and why?
15. Question: Which of the following data sets would you expect to have the highest mean?
16. Question: Which data outcome of stock prices would best support the idea that there is more risk with that stock?
17. Question: In manufacturing, systematic sampling could … to determine if the machines are operating correctly. Which of the following best describes this type of sampling?
18. Question: A graph shows a line connecting the tops of vertical bars with the number of data points on the y-axis and groups on the x-axis. This graphic is most likely to:
19. Question: Match the terms and their definitions: (1) Vertical bar chart that shows frequency on the y-axis (2) A sample where the population is divided into groups and several groups are randomly selected from all from those selected groups are sampled (3) Collection of all counts that are of interest (4) A subset or part of a population (5) A sample where the population is divided into groups and several are randomly sampled form each group (6) Consists of attributes, labels, or non-numerical entries
20. Question: Match the terms and their definitions: (1) The most frequent number appearing in a dataset (2) The average (3) The percentage of data that falls within 1, 2, or 3 standard deviations of the mean in a symmetrical, bell-shaped distribution (4) The square root of the variance (5) Show how far a particular data point is from the mean in terms of the number of standard deviations.

MATH-221 Week 1 Homework: Statistics for Decision-Making (Jan 2020-v2)

1. Question: The average age of all employees at a local store would … considered:
2. Question: A survey of 1050 students was taken from a university with 19,500 students. The 19,500 would … considered a
3. Question: Inferential statistics is when sample data is … to
4. Question: The ages of 20 first graders would be considered:
5. Question: Marriage status (married, single, etc.) of the faculty at a university would:
6. Question: The final grades for students in a statistics class would:
7. Question: Sixteen students are randomly … from each grade level at a high school and asked about their eating habits. This sampling technique is
8. Question: A personnel director at a large company would like to determine whether the company cafeteria is widely … by employees. She calls each employee and asks them whether they usually bring their own lunch, eat at the company cafeteria, or go out for lunch. This study design would
9. Question: Which of the following would … the mean of this data set: 5, 28, 12, 56, 4, 2, 30, 21
10. Question: Which of the following would…standard deviation of this sample data set: 67, 54, 30, 77, 92, 41, 75, 81
11. Question: Which of the following would…variance of this population data set: 3, 6, 8, 9, 4, 5, 7, 1, 9, 7, 5, 4, 13, 9
12. Question: What is the relationship between variance and standard deviation?
13. Question: If data set A has a larger mean than data set B, what would … different about their distributions?
14. Question: In a normally distributed data set with a mean of 24 and a standard deviation of 4.2, what percentage of the data would … between 15.6 and 32.4 and why?
15. Question: Which of the following data sets would you expect to have the highest standard deviation?
16. Question: Which data outcome of stock prices would best support the idea that there is more risk with that stock?
17. Question: In manufacturing, systematic sampling could … to determine if the machines are operating correctly. Which of the following best describes this type of sampling?
18. Question: A graph shows a line connecting the tops of vertical bars with the number of data points on the y-axis and groups on the x-axis. This graphic is most likely to:
19. Question: Match the terms and their definitions: (1) Vertical bar chart that shows frequency on the y-axis (2) A sample where the population is divided into groups and several groups are randomly selected from all from those selected groups are sampled (3) Collection of all counts that are of interest (4) A subset or part of a population (5) A sample where the population is divided into groups and several are randomly sampled form each group (6) Consists of attributes, labels, or non-numerical entries
20. Question: Match the terms and their definitions: (1) The most frequent number appearing in a dataset (2) The average (3) The percentage of data that falls within 1, 2, or 3 standard deviations of the mean in a symmetrical, bell-shaped distribution (4) The square root of the variance (5) Show how far a particular data point is from the mean in terms of the number of standard deviations.
    

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MATH 221 Week 1 Homework: Statistics for Decision-Making (Jan 2020-v3)

1. Question: The age of every fourth person entering a department store. The selected individuals would :
2. Question: Of all DeVry students, a study found that 43% of them are business majors. The 43% would:
3. Question: The chances of winning the Maryland lottery are one chance in twentytwo million. The probability would … an example of:
4. Question: The hair color of the players on a tennis team would:
5. Question: Marriage status (married, single, etc.) of the faculty at a university would:
6. Question: The nationalities (for example, Asian, European, etc.) listed in a recent survey would:
7. Question: Every fifth person boarding a plane is asked additional security questions. This sampling technique is:
8. Question: Cameras are set up to watch an intersection and determine how many cars are let through with each green light interval. This study design would:
9. Question: Which of the … the mean of this data set: 5, 7, 12, 56, 4, 2, 33, 21
10. Question: Which of the … the standard deviation of this sample data set: 67, 54, 30, 77, 61, 41, 75, 83
11. Question: Which of the … the variance of this population data set: 3, 6, 8, 9, 4, 5, 7, 1, 9, 7, 5, 4, 13, 9
12. Question: What is the relationship between variance and standard deviation?
13. Question: If data set A has a larger mean than data set B, what would … different about their distributions?
14. Question: In a normally … data set a mean of 55 where 99.7% of the data fall between 47.5 and 62.5, what would … the standard deviation of that data set?
15. Question: Which of the following data sets would you expect to have the highest mean?
16. Question: Which data outcome of the speed of cars would best support installing a speed bump?
17. Question: In manufacturing, convenience sampling could … to determine if the machines are operating correctly. Which of the following best describes this type of sampling?
18. Question: A graph shows a number line with a mark for each data value in the data set above its value. This graphic is most likely to be:
19. Question: Match the terms and their definitions:
20. Question: Match the terms and their definitions:

MATH-221 Week 1 Homework: Statistics for Decision-Making (Jan 2020-v4)

1. Question: The age of every fourth person entering a department store. The selected individuals would:
2. Question: A survey of 1050 students was … from a university with 19,500 students. The 19,500 would:
3. Question: Inferential statistics is when sample data is … to:
4. Question: The hair color of the players on a tennis team would:
5. Question: Marriage status (married, single, etc.) of the faculty at a university would:
6. Question: The nationalities (for example, Asian, European, etc.) listed in a recent survey would:
7. Question: Five statistics classes out of 20 are … and all the students in the … classes are interviewed. This sampling technique is:
8. Question: A researcher obtained a random sample of 100 smokers and a random sample of 100 non-smokers. After interviewing all 200 participants, the researcher compared the rates of depression between the two groups. This study design would:
9. Question: Which of the .. the mean of this data set: 5, 28, 12, 56, 4, 2, 30, 21
10. Question: Which of the … the standard deviation of this population data set: 67, 54, 30, 77, 92, 41, 75, 81
11. Question: Which of the … the variance of this population data set: 3, 6, 8, 9, 4, 5, 7, 1, 9, 7, 5, 4, 3, 1
12. Question: What is the relationship between variance and standard deviation?
13. Question: If data set A has a larger mean than data set B, what would … different about their distributions?
14. Question: In a normally distributed data set with a mean of 24 and a standard deviation of 4.2, what percentage of the data would be between 19.8 and 28.2 and why?
15. Question: Which of the following data sets would you expect to have the highest standard deviation?
16. Question: Which data outcome of the speed of cars would best support installing a speed bump?
17. Question: In manufacturing, systematic sampling could … to determine if the machines are operating correctly. Which of the following best describes this type of sampling?
18. Question: A graph shows vertical bars with the number of data points on the y-axis and groups on the x-axis. This graphic is most likely to be:
19. Question: Match the terms and their definitions:
20. Question: Match the terms and their definitions:
    

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MATH 221 Week 1 Homework: Statistics for Decision-Making (Jan 2020-v5)

1. Question: A recent survey of the alumni of a university … that the average salary of 10,000 of its 200,000 graduates was $130,000. The $130,000 would:
2. Question: Of all DeVry students, a study found that 43% of them are business majors. The 43% would:
3. Question: The chances of winning the Maryland lottery are one chance in twenty-two million. The probability would … an example of:
4. Question: The ages of 20 first graders would:
5. Question: The ratings of 50 movies would:
6. Question: The compensation of all college graduates would:
7. Question: Sixteen students are … from each grade level at a high school and … about their eating habits. This sampling technique is:
8. Question: A researcher obtained a random sample of 100 smokers and a random sample of 100 non-smokers. After interviewing all 200 participants, the researcher compared the rates of depression between the two groups. This study design would … :
9. Question: Which of the following would … the mean of this data set: 5, 28, 12, 56, 4, 2, 30, 21
10. Question: Which of the following would … the standard deviation of this sample data set: 67, 54, 30, 77, 92, 41, 75, 81
11. Question: Which of the following would … the variance of this population data set: 3, 6, 8, 9, 4, 5, 7, 1, 9, 7, 5, 4, 3, 1
12. Question: What is the relationship between variance and standard deviation?
13. Question: If data set A has a smaller mean than data set B, what would … different about their distributions?
14. Question: In a normally distributed data set with a mean of 24 and a standard deviation of 4.2, what percentage of the data would be between 15.6 and 32.4 and why?
15. Question: Which of the following data sets would you expect to have the highest standard deviation?
16. Question: Which data outcome of the speed of cars would best support removing a speed camera?
17. Question: In manufacturing, convenience sampling could … to determine if the machines are operating correctly. Which of the following best describes this type of sampling?
18. Question: A graph shows a number line with a mark for each data value in the data set above its value. This graphic is most likely to:
19. Question: Match the terms and their definitions:
20. Question: Match the terms and their definitions:

MATH-221 Week 1 Homework: Statistics for Decision-Making (Jan 2020-v6)

1. Question: The age of every fourth person entering a department store. The selected individuals:
2. Question: A recent survey of the alumni of a university … that the average salary of 10,000 of its 200,000 graduates was $130,000. The 10,000 would:
3. Question: The average age of students in a statistics class is 28 years. The 28 years would … an example of:
4. Question: The milligrams of tar in 30 cigarettes would:
5. Question: Marriage status (married, single, etc.) of the faculty at a university would:
6. Question: The compensation of all college graduates would:
7. Question: Every fifth person boarding a plane is … additional security questions. This sampling technique is:
8. Question: A researcher obtained a random sample of 100 smokers and a random sample of 100 non-smokers. After interviewing all 200 participants, the researcher compared the rates of depression between the two groups. This study design would:
9. Question: Which of the … the mean of this data set: 5, 7, 12, 56, 4, 2, 33, 21
10. Question: Which of the .. the standard deviation of this sample data set: 67, 54, 30, 77, 61, 41, 75, 83
11. Question: Which of the following would .. the variance of this population data set: 3, 6, 8, 9, 4, 5, 7, 1, 9, 7, 5, 4, 13, 9
12. Question: If a data set is right … , where would the mean … in relation to the mode?
13. Question: If data set A has a smaller standard deviation than data set B, what would … different about their distributions?
14. Question: In a normally distributed data set with a mean of 24 and a standard deviation of 4.2, what percentage of the data would … between 15.6 and 32.4 and why?
15. Question: Which of the following data sets would you expect to have the highest standard deviation?
16. Question: Which data outcome of stock prices would best support the idea that there is more risk with that stock?
17. Question: In manufacturing, cluster sampling could … to determine if the machines are operating correctly. Which of the following best describes this type of sampling?
18. Question: A graph shows the ten’s digit on the left and the one’s digits on the right. This graphic is most:
19. Question: Match the terms and their definitions: (1) Vertical bar chart that shows frequency on the y-axis (2) A sample where the population is … into groups and several groups are … from all from those … (3) Collection of all counts that are of interest (4) A subset or part of a population (5) A sample where the population is … into groups and several are … form each group (6) Consists of attributes, labels, or non-numerical entries
20. Question: Match the terms and their definitions: (1) The most frequent number appearing in a dataset (2) The average (3) The percentage of data that falls within 1, 2, or 3 standard deviations of the mean in a symmetrical, bell-shaped distribution (4) The square root of the variance (5) Show how far a particular data point is from the mean in terms of the number of standard deviations.
    

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MATH 221 Week 1 Homework: Statistics for Decision-Making (Extra Version)

1. Question: The average age of all employees at a local store would … a:
2. Question: Of all DeVry students, a study found that 43% of them are business majors. The 43% would … a:
3. Question: The chances of winning the Maryland lottery are one chance in twenty-two million. The probability would … an example of:
4. Question: The hair color of the players on a tennis team would … :
5. Question: Marriage status (married, single, etc.) of the faculty at a university would … :
6. Question: The final grades for students in a statistics class would … :
7. Question: Every fifth person boarding a plane is … additional security questions. This sampling technique is :
8. Question: A personal director at a large company would like to determine whether the company cafeteria is widely … by employees. She sits by the cafeteria entrance and counts how many employees enter. This study design would … :
9. Question: Which of the … the mean of this data set: 5, 28, 12, 56, 4, 2, 30, 21
10. Question: Which of the … the standard deviation of this sample data set: 67, 54, 30, 77, 61, 41, 75, 83
11. Question: Which of the … the variance of this population data set: 3, 6, 8, 9, 4, 5, 7, 1, 9, 7, 5, 4, 3, 1
12. Question: If a data set is right …, where would the mean … in relation to the mode?
13. Question: If data set A has a smaller mean than data set B, what would … different about their distributions?
14. Question: In a normally … data set with a mean of 24 and a standard deviation of 4.2, what percentage of the data would be between 19.8 and 28.2 and why?
15. Question: Which of the following data sets would you … to have the highest mean?
16. Question: Which data outcome of the number of customers in line would best support opening another cash register?
17. Question: In manufacturing, cluster sampling could be … to determine if the machines are operating correctly. Which of the following best describes this type of sampling?
18. Question: A graph shows the ten’s digit on the left and the one’s digits on the right. This graphic is most likely to be:
19. Question: Match the terms and their definitions
20. Question: Match the terms and their definitions