Statistics #1

The ages of the members of two clubs are given in the table. How many years greater is the mean age of the members of the drama club than the mean age of the members of the art club?

• 2

• 80

• 8

• 4

Kate conducts a survey at her middle school to determine the students’ favorite sport. Which sampling method would best produce a representative sample of the population?

• Kate surveys the football team.

• Kate surveys seventh grade students.

• Kate surveys every 4th student entering the school.

• Kate surveys every 8th student from a roster of the choir members.

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CCSS.6.SP.A.1

The box plots compare the gross earnings, in millions of dollars, of movies during the months of August and November. Which statement correctly compares the two data sets?

• The median in August is about half of the median in November.

• The median in November is about 400 more than the median in August.

• The difference in the medians is about half of the range in November.

• The difference in the medians is about half of the interquartile range in August.

A random sample of the girls’ heights at a basketball camp are shown. Which of the following statements are true? Select all that apply.

• The mean height of the 7th grade girls is greater than the mean height of the 8th grade girls.

• The girls in both grades have the same median height.

• The heights of 8th grade girls varies more than the heights of the 7th grade girls.

• The girls in 7th grade tend to be taller than the girls in 8th grade.

What is the median of the data?

• 200
• 100
• 90
• 140

• The data from the Bulls shows more variation.

• The data from the Spartans shows more variation.

• The data from the Bulls and Spartans scores shows the same variation.

• Not enough information is given to determine the variation.