7th 6-3 Comparative Inferences about Populations

There are two movie theaters in a town. A student wants to compare the amount of money each theater makes over a period of days. The following box plots show the data for the amount of money each theater makes over a period of days. Compare the median of each box plot.

• The medians are about the same.

• Theater 1 has a greater median.

• Theater 2 has a greater median.

Tags

CCSS.7.SP.B.4

The following box plots display how fast two different types of animals can run. Compare the median of each box plot.

• The medians are about the same.

• Animal 1 has a greater median.

• Animal 2 has a greater median.

Tags

CCSS.HSS.ID.A.3

The following box plots show the frequency of test scores on a recent math test in two classes. What is the interquartile range​ (IQR) of the test scores for Class 1?

• 35

• 40

• 45

• 50

Tags

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.4

CCSS.6.SP.B.5

The following box plots show the frequency of test scores on a recent math test in two classes. What is the interquartile range​ (IQR) of the test scores for Class 2?

• 35

• 40

• 45

• 50

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

The following box plots show the frequency of test scores on a recent math test in two classes. Make a comparative inference about the populations based on the IQR. Choose the correct answer below. ?

• Class 1 has more varied class scores.

• Class 2 has more varied class scores.

• Class 1 has more consistent class scores.

• Both classes have equality consistent scores.

Tags

CCSS.7.SP.B.4

Angela is comparing the amount of rainfall over the past month in two cities on days when it rained. In City​ 1, the range in rainfall is 4.5 centimeters and the interquartile range​ (IQR) is 1.5 centimeters. In City​ 2, the range is 5 centimeters and the IQR is 3 centimeters. What might you conclude about the cities based on the ranges and interquartile​ ranges?

• The rainfall amounts on days when it rains have the same variability for City 1 and City 2.

• The rainfall amounts on days when it rains have greater variability for City 1 than those for City 2.

• The rainfall amounts on days when it rains have greater variability for City 2 than those for City 1.

• The rainfall amounts on days when it rains are generally greater for City 2 than those for City 1.

Tags

CCSS.7.SP.B.4

The box plots show the amount of time farmers from two farms spent harvesting crops over the past 2 months. Determine the IQR for Farm 1.

• 6

• 7

• 8

• 9

Tags

CCSS.6.SP.B.5C

The box plots show the amount of time farmers from two farms spent harvesting crops over the past 2 months. Determine the IQR for Farm 2.

• 6

• 7

• 8

• 9

Tags

CCSS.6.SP.B.5C

The box plots show the amount of time farmers from two farms spent harvesting crops over the past 2 months. What inference can be made based on the IQR of both Farms?

• Farm 2 has more variability in hours spent harvesting.

• Farm 1 has more consistent hours spent harvesting.

• Farm 2 has more consistent hours spent harvesting.

• Both farms are equally varied in the hours spent harvesting.

Tags

CCSS.7.SP.B.4

The following box plots show the high​ temperatures, in degrees​ Fahrenheit, in two cities over the past 10 days. What might you conclude about the cities based on the interquartile​ ranges?

• The weather pattern in City 2 is more consistent than the weather pattern in City 1.

• The weather patterns in City 1 and City 2 are equally consistent.

• The weather pattern in City 1 is more consistent than the weather pattern in City 2.

Tags

CCSS.7.SP.B.4