Statistics Review

How many students received a score of 94%? 

• 94

• 4

• 1

• 2

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

Students record the number of minutes they read at home. The box plot shows the summary of the results. Which statements best describe the data?

• A quarter of the students read for 30-40 minutes.

• The interquartile range is 30.

• About half the students read for 50 minutes or more.

• The average number of minutes read was 47.

The dot plot shows the number of hours the students in Ms. Ferro's class volunteer each month. Which of the following statements is not correct?

• There are a total of 17 students in Mrs. Ferro's class.

• Exactly 7 students volunteered for less than 7 hours.

• Less than half of the students volunteer for 9 hours or more.

• The mode is 6 and 10.

Coach Culpepper tallies his players' ages below. What percent of the team is 14 or older?

• 32%

• 45%

• 36%

• 60%

Based on the box plot below, which statement is not true?

• The oldest team member is 24.

• The median age is 22.

• Fifty percent of the participants are older than 22.

• Less than 25% of the participants are 20 or younger.

Which of the statement about the data in the histograms is true?

• A total of 30 teams were included in the data.

• Over half of the teams made 26-30 field goals in the season.

• 13 teams made between 21-25 field goals during the season.

• A total of 18 teams made 26 or more field goals.

The data set below represents the different costs of tablets at an electronics store.

$298, $196, $248, $379, $319, $276, $198, $349

What is the median of the first half of the data? (first quartile)

The data set below represents the different costs of tablets at an electronics store. $298, $196, $248, $379, $319, $276, $198, $349 What is the median of the second half of the data? (third quartile)

The data set below represents the different costs of tablets at an electronics store.

$298, $196, $248, $379, $319, $276, $198, $349

What is the interquartile range?