Statistics Quiz

The number of points in the last five games of the basketball season are listed below. What is the median number of points scored?

Students record the number of minutes they read at home. The box plot shows the summary of the results. Which statement is true about the data?

• A. Half of the students read for less than 40 minutes.

• B. The data is skewed to the right.

• C. Most students read for exactly 50 minutes.

• D. The median reading time is 47 minutes.

The dot plot shows the number of hours the students in Mr. Smith's class volunteer each month. Which of the following statements is correct?

• A. There are a total of 20 students in Mr. Smith's class.

• B. Exactly 5 students volunteered for more than 8 hours.

• C. More than half of the students volunteer for 6 hours or less.

• D. The mode is 7 and 9.

The number of wins in the 2015 season in the American League is shown below. What is the median number of wins in the American League?

Based on the box plot below, which statement is true?

• A. The median age is 24.

• B. The youngest team member is 20.

• C. The data is symmetrical.

• D. The oldest team member is 22.

Which of the following statements about the data in the histogram is correct?

• A. A total of 25 teams were included in the data.

• B. Less than half of the teams made 26-30 field goals in the season.

• C. There were 15 teams that made between 21-25 field goals during the season.

• D. A total of 20 teams made 26 or more field goals.

The data set below represents the different costs of monthly internet service: $38, $56, $48, $72, $50, $66. a. What is the mean? ______ b. What is the range? ______ c. What is the mode? ______

The dot plot below shows the number of books read by students in Mrs. Jimenez's class over the summer. What is the median number of books read?

• A. 3

• B. 4

• C. 5

• D. 6

Which of the following statements best describes the distribution of the data in Question 9?

• A. The data is evenly distributed and has no skew.

• B. Most of the data is clustered around the mean and skewed left.

• C. The range of the data is 15.

• D. The data is spread out and skewed right.

Which of the following statements best describes the characteristics of the data distribution shown below?

• A. The data distribution is symmetrical, so the mean and median are likely within 1-2 miles.

• B. The data distribution is skewed right, so the mean and median are likely within 2-3 miles.

• C. The data distribution is skewed left, so the mean and median are likely within 2-3 miles.

• D. The data distribution is symmetrical, so the mean and median are likely within 3-4 miles.