DATA & STATISTICS UNIT TEST

At the zoo, the length of each iguana is measured. Which statement is best supported by the information below?

• Over half of the iguanas measure 14 centimeters or more in length.

• 25% of the iguanas measure 12 centimeters in length.

• The number of iguanas that measure 15 centimeters or more is equal to the number that measure 11 centimeters or less.

Tags

CCSS.2.MD.D.9

Which of the conclusions best supports the dot plots?

• Both Jamal’s and Kendall’s race cars had an equal spread in their data.

• On average, Kendall’s race car traveled further.

• The median distance Jamal’s race car traveled was 6.5 ft.

• Both Jamal and Kendall had the same mode of data.

Which of the following represents the mean absolute deviation of Jamal’s data?

• 6.4

• 1.12

• 2.8

• 0.9

Tags

CCSS.6.SP.B.5C

Mrs. Moore’s and Mrs. Ruiz’s classes are competing for the best scores on their math test. Use the box plots below to answer questions 7-8. Which of the following statements does not represent the data?

• The scores in Mrs. Ruiz’s class have less variability than the scores in Mrs. Moore’s class.

• The median of Mrs. Moore’s class is equal to the first quartile of Mrs. Ruiz’s class.

• The interquartile range of both classes is equal.

• The scores in Mrs. Moore’s class have a greater spread than the scores in Mrs. Ruiz’s class.

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

Which of the following represents the difference in centers of Mrs. Moore’s class and Mrs. Ruiz’s class?

• 7

• 11

• 4

• 3

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

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

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

Tags

CCSS.6.SP.B.5C

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

What is the median of the second half of the data? (third quartile)

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

Tags

CCSS.6.SP.B.5C

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

What is the interquartile range?

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

Tags

CCSS.6.SP.B.5C

A company surveyed all of the employees in their Columbus, Ohio office, one of their six national offices. Based on the survey, they determined that 72% of all employees were satisfied with their job. Which of the following explains why this is NOT a random sample?

• A. They only surveyed people who had been at their job for five years or more

• B. They did not survey employees in other offices around the country

• C. The survey was conducted electronically

• D. The survey had a time limit

Tags

CCSS.HSS.IC.B.3

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

Tags

CCSS.6.SP.B.5C