**STAT 200 Midterm Exam (2019 version)**

1. (one point) In the graph, there are two distributions: A and B.

We can know from the graph: (A larger standard deviation makes a graph wider. B is wider, making it bigger than A.)

a. Distribution A has a bigger standard deviation than distribution B

b. Distribution B has a bigger standard deviation than distribution A

c. Distribution A and distribution B have the same standard deviation

d. We cannot tell which has a larger standard deviation from the graph

2.(one point) A researcher collected BMI (Body Mass Index) of 50 students in an Engineering school. He found the mean BMI was much smaller than the median BMI. The reason for this might be _B_. A larger median would make the mean (the average) larger as well.

3.(one point) What is the level of measure for each of the following:

4.(one point) Determine type of sampling used:

5. (two points) A simple random sample of pages of my dictionary was collected. These are the number of words defined on each page. Find the measures of central tendency: mean, median, and mode.

6. (two points) The bi-monthly salaries for the 12 workers at my local Chick Fil-A are as follows:

Worker 1 and 7 |
Worker 2, 8 & 9 |
Worker 3 |
Worker 4, 10, 11, 12 |
Worker 5 |
Worker 6 |

774 |
669 |
1110 |
546 |
531 |
612 |

Calculate the measures of variability: range, variance, and standard deviation. Create a frequency distribution table that includes relative and cumulative relative frequency. Then create a graph of your choosing.

7. (two points) I had 16 students last term who earned the following grades: 98 85 89 73 72 85 85 92 85 56 98 97 92 93 95 86 What is the 5 numbers summary for these students? Create a box plot for the data.

8. (two points) I developed an achievement test and normalized it on people throughout the country over a year. My test has scores that are normally distributed with a mean of 100 and a standard deviation of 10.

9. (two points) Ten peas are generated from parents having the green/yellow pair of genes so there is a 75% probability that an individual pea will have a green pod. Find the probability that among the 10 offspring peas, at least 7 have green pods.

10. (two points) I always wanted to give away my vast wealth, so I am going to have a lottery next year. You have to pick the five winning numbers from 1-20. Each randomly selected number is different and order doesn’t matter. What is the probability of your winning?

11. (two points) In a study of families with children with disabilities, group of 6 US households were randomly selected. In the table below, the random variable x represents the number of households among 6 that had a child with a disability living there.

12. (two points) I am going to roll two fair dice.

**STAT 200 Midterm Exam (2019 version)**

1. (one point) In the graph, there are two distributions: A and B.

We can know from the graph: (A larger standard deviation makes a graph wider. B is wider, making it bigger than A.)

a. Distribution A has a bigger standard deviation than distribution B

b. Distribution B has a bigger standard deviation than distribution A

c. Distribution A and distribution B have the same standard deviation

d. We cannot tell which has a larger standard deviation from the graph

2.(one point) A researcher collected BMI (Body Mass Index) of 50 students in an Engineering school. He found the mean BMI was much smaller than the median BMI. The reason for this might be _B_. A larger median would make the mean (the average) larger as well.

3.(one point) What is the level of measure for each of the following:

4.(one point) Determine type of sampling used:

5. (two points) A simple random sample of pages of my dictionary was collected. These are the number of words defined on each page. Find the measures of central tendency: mean, median, and mode.

6. (two points) The bi-monthly salaries for the 12 workers at my local Chick Fil-A are as follows:

Worker 1 and 7 |
Worker 2, 8 & 9 |
Worker 3 |
Worker 4, 10, 11, 12 |
Worker 5 |
Worker 6 |

774 |
669 |
1110 |
546 |
531 |
612 |

Calculate the measures of variability: range, variance, and standard deviation. Create a frequency distribution table that includes relative and cumulative relative frequency. Then create a graph of your choosing.

7. (two points) I had 16 students last term who earned the following grades: 98 85 89 73 72 85 85 92 85 56 98 97 92 93 95 86 What is the 5 numbers summary for these students? Create a box plot for the data.

8. (two points) I developed an achievement test and normalized it on people throughout the country over a year. My test has scores that are normally distributed with a mean of 100 and a standard deviation of 10.

9. (two points) Ten peas are generated from parents having the green/yellow pair of genes so there is a 75% probability that an individual pea will have a green pod. Find the probability that among the 10 offspring peas, at least 7 have green pods.

10. (two points) I always wanted to give away my vast wealth, so I am going to have a lottery next year. You have to pick the five winning numbers from 1-20. Each randomly selected number is different and order doesn’t matter. What is the probability of your winning?

11. (two points) In a study of families with children with disabilities, group of 6 US households were randomly selected. In the table below, the random variable x represents the number of households among 6 that had a child with a disability living there.

12. (two points) I am going to roll two fair dice.

**STAT 200 Midterm Exam (2019 version)**

1. (one point) In the graph, there are two distributions: A and B.

We can know from the graph: (A larger standard deviation makes a graph wider. B is wider, making it bigger than A.)

a. Distribution A has a bigger standard deviation than distribution B

b. Distribution B has a bigger standard deviation than distribution A

c. Distribution A and distribution B have the same standard deviation

d. We cannot tell which has a larger standard deviation from the graph

2.(one point) A researcher collected BMI (Body Mass Index) of 50 students in an Engineering school. He found the mean BMI was much smaller than the median BMI. The reason for this might be _B_. A larger median would make the mean (the average) larger as well.

3.(one point) What is the level of measure for each of the following:

4.(one point) Determine type of sampling used:

5. (two points) A simple random sample of pages of my dictionary was collected. These are the number of words defined on each page. Find the measures of central tendency: mean, median, and mode.

6. (two points) The bi-monthly salaries for the 12 workers at my local Chick Fil-A are as follows:

Worker 1 and 7 |
Worker 2, 8 & 9 |
Worker 3 |
Worker 4, 10, 11, 12 |
Worker 5 |
Worker 6 |

774 |
669 |
1110 |
546 |
531 |
612 |

Calculate the measures of variability: range, variance, and standard deviation. Create a frequency distribution table that includes relative and cumulative relative frequency. Then create a graph of your choosing.

7. (two points) I had 16 students last term who earned the following grades: 98 85 89 73 72 85 85 92 85 56 98 97 92 93 95 86 What is the 5 numbers summary for these students? Create a box plot for the data.

8. (two points) I developed an achievement test and normalized it on people throughout the country over a year. My test has scores that are normally distributed with a mean of 100 and a standard deviation of 10.

9. (two points) Ten peas are generated from parents having the green/yellow pair of genes so there is a 75% probability that an individual pea will have a green pod. Find the probability that among the 10 offspring peas, at least 7 have green pods.

10. (two points) I always wanted to give away my vast wealth, so I am going to have a lottery next year. You have to pick the five winning numbers from 1-20. Each randomly selected number is different and order doesn’t matter. What is the probability of your winning?

11. (two points) In a study of families with children with disabilities, group of 6 US households were randomly selected. In the table below, the random variable x represents the number of households among 6 that had a child with a disability living there.

12. (two points) I am going to roll two fair dice.

**STAT 200 Midterm Exam (2019 version)**

**STAT 200 Midterm Exam (2019 version)****STAT 200 Midterm Exam (2019 version)**STAT 200 Midterm Exam (2019 version)

We can know from the graph: (A larger standard deviation makes a graph wider. B is wider, making it bigger than A.)

1. (one point) In the graph, there are two distributions: A and B.

We can know from the graph: (A larger standard deviation makes a graph wider. B is wider, making it bigger than A.)

a. Distribution A has a bigger standard deviation than distribution B

b. Distribution B has a bigger standard deviation than distribution A

b. Distribution B has a bigger standard deviation than distribution A

c. Distribution A and distribution B have the same standard deviation

c. Distribution A and distribution B have the same standard deviation

d. We cannot tell which has a larger standard deviation from the graph

d. We cannot tell which has a larger standard deviation from the graph

3.(one point) What is the level of measure for each of the following:

4.(one point) Determine type of sampling used:

6. (two points) The bi-monthly salaries for the 12 workers at my local Chick Fil-A are as follows:

6. (two points) The bi-monthly salaries for the 12 workers at my local Chick Fil-A are as follows:

Worker 1 and 7 |
Worker 2, 8 & 9 |
Worker 3 |
Worker 4, 10, 11, 12 |
Worker 5 |
Worker 6 |

774 |
669 |
1110 |
546 |
531 |
612 |

Worker 1 and 7

Worker 2, 8 & 9

Worker 3

Worker 4, 10, 11, 12

Worker 5

Worker 6

774

669

1110

546

531

612

Worker 1 and 7

Worker 2, 8 & 9

Worker 3

Worker 4, 10, 11, 12

Worker 5

Worker 6

Worker 1 and 7

Worker 1 and 7

Worker 1 and 7

Worker 2, 8 & 9

Worker 2, 8 & 9

Worker 2, 8 & 9

Worker 3

Worker 3

Worker 3

Worker 4, 10, 11, 12

Worker 4, 10, 11, 12

Worker 4, 10, 11, 12

Worker 5

Worker 5

Worker 5

Worker 6

Worker 6

Worker 6

774

669

1110

546

531

612

774

774

774

669

669

669

1110

1110

1110

546

546

546

531

531

531

612

612

612

Calculate the measures of variability: range, variance, and standard deviation. Create a frequency distribution table that includes relative and cumulative relative frequency. Then create a graph of your choosing.

Calculate the measures of variability: range, variance, and standard deviation. Create a frequency distribution table that includes relative and cumulative relative frequency. Then create a graph of your choosing.

12. (two points) I am going to roll two fair dice.