Unit 6 Review: Statistics

Question 1:

Use the dot plot to answer the following question:

How many friends did Chris Survey?

• 5

• 12

• 14

• 10

Question 2:

Use the dot plot to answer the question:

What is the median of the data set?

• 2

• 2.28

• 1

• 3

Question 3:

Use the dot plot to answer the following question:

Describe the shape of the data distribution in the dot plot.

• The data distribution is skewed to the left.

• The data distribution is skewed to the right.

• The data distribution is symmetric.

• Most of the data lies above 3 pets owned.

Question 4:

Using the dot plot to the right to  find the outlier of the data set.

• 0

• 6

• 4

• 10

Question 5:

Which of the following is true about the box and whisker plot shown below?

• 50% of the data is greater than 1.

• 25% of the data us greater than 2.

• 50% of the data is greater than 3.

• 75% of the data is less than 3.

Question 6:

What is the range of the box plot?

• 4

• 5

• 3

• 0

Question 7a:

The chart shows the different costs of monthly internet services.

What is the mean of the data?

Question 7b:

The chart shows the different costs of monthly internet services.

What is the median of the data?

Question 8:

Which of the answer choices below correctly explains why the mean and the median of Dylan’s data are the same?

• The mean and median are different because the data set is symmetrical.

• The mean and median are the same because the data set is symmetrical.

• The mean and median are the same because the data set is skewed.

• The mean and median are different because the greatest frequency is in the center.

Question 9:

What is the median age of the employees at Chick-Fil-A?

• 17

• 20

• 19

• 15