STAAR 7.12a

A company divided its salespeople into two teams and recorded the amount of each employee's sales in dollars for a week. The box plots display the results. Which statement is best supported by the information in the box plots?

• The range for Sales Team X is $10 more than the range for Sales Team Y.

• The interquartile range for Sales Team X is half the interquartile range for Sales Team Y.

• The mean for Sales Team X is $5 less than the mean for Sales Team Y.

• The interquartile range for Sales Team X is twice the interquartile range for Sales Team Y.

A shoe store manager ordered various sizes of running shoes. The dot plots show the sizes of women's shoes and men's shoes that the manager ordered. Which statement is best supported by the information in the dot plots?

• A) The distributions of the data for both the women's and the men's shoes are symmetric.

• B) The distribution of the data for the men's shoes is symmetric, but the distribution for the women's shoes is not.

• C) The distribution of the data for the women's shoes is symmetric, but the distribution for the men's shoes is not.

• D) The distribution of the data for neither the women's nor the men's shoes is symmetric.

A teacher recorded the typing speeds of her students on Monday and Tuesday. The results are shown in the box plots. Which statement is best supported by the information in the box plots?

• The median typing speed on Monday was less than the median typing speed on Tuesday.

• The maximum typing speed on Monday was greater than the maximum typing speed on Tuesday.

• The range of the typing speeds on Monday was equal to the range of the typing speeds on Tuesday.

• The interquartile range of the typing speeds on Monday was equal to the interquartile range of the typing speeds on Tuesday.

The distribution of the data for both groups is (a)   and both groups have the same (b)   .

• Group A

• Group B

• Mean

• Median

A scientist measured the weights of squirrels in two populations. The dot plots display data from each population. Which statement is best supported by the information in the dot plots?

• The two populations have different mode weights.

• The two populations have different median weights.

• The data for the two populations have different skews.

• The data for the two populations have different ranges.

Which statement is best supported by the data in the box plots?

• The median of the data for the university is greater than the median of the data for the community college.

• The range of the data for the university is greater than the range of the data for the community college.

• The interquartile range of the data for the community college is greater than the interquartile range of the data for the university.

• The third quartile of the data for the community college is greater than the third quartile of the data for the university.

The dot plots show the numbers of apples picked by members of two different tour groups at an orchard. Which statement correctly compares these two data sets?

• The median of the data is the same for both data sets.

• The mode of the data is the same for both data sets.

• The range of the data is the same for both data sets.

• The distribution of the data is symmetrical for both data sets.

The box plots show the numbers of lessons completed by individual students enrolled in an online program at two different schools. Which statement is best supported by the data in the box plots?

• A. The range of the data for School 1 is greater than the range of the data for School 2.

• B. The median of the data for School 2 is greater than the median of the data for School 1.

• C. The interquartile range of the data for School 2 is greater than the interquartile range of the data for School 1.

• D. The students at School 1 completed more lessons than the students at School 2.

The box plots show the target heart rates of men 20–40 years old and men 50–70 years old. Which statement is best supported by the information in the box plots?

• The range of the data for men 20–40 years old is less than the range of the data for men 50–70 years old.

• The median of the data for men 20–40 years old is less than the median of the data for men 50–70 years old.

• The minimum target heart rate for men 20–40 years old is less than the minimum target heart rate for men 50–70 years old.

• The interquartile range of the data for men 20–40 years old is greater than the interquartile range of the data for men 50–70 years old.

Which statement is supported by the information in the dot plots?

• The mode of the data for Store 2 is greater than the mode of the data for Store 1.

• The range of the data for Store 1 is greater than the range of the data for Store 2.

• The mean of the data for Store 1 is greater than the mean of the data for Store 2.

• The median of the data for Store 2 is greater than the median of the data for Store 1.