Draw Inferences Using Data

Mr. Jackson had students grow the same type of plant in two different rooms to test the growing conditions. The results are shown in the box plant. Choose ALL accurate statements below.

• Room 7G has the tallest plant.

• 75% of 7D plants are 8 in. or taller.

• 7G has a greater median height.

• Room 7D has the shortest and tallest plants.

Kerron gathers the heights of a random sample of 6th graders and 7th graders and displays the data in box plots. Which statement below is true?

• The median of the 7th grade sample is greater than the 6th grade sample.

• The 7th grade sample has greater variability.

• The ranges of both data samples are equivalent.

• The median of the 6th grade sample is greater than the 7th grade sample.

The box plots describe the heights of flowers selected randomly from two gardens. What is the median of the flowers in Garden Y, in inches? ________ inches

Using the box plot, who spend more time in outdoor activity? Explain.

• Soccer players, because they have a greater range of active minutes outdoors.

• Basketball players, because they have a greater range of active minutes outdoors.

• Soccer players, because they have a greater median of minutes spent outdoors.

• Basketball players, because they have a greater median of minutes spent outdoors.

A random survey of seventh- and eighth-grade students was conducted to find out how many hours are spent doing homework each night. Of the two sets of data, which has the greater median?

• Seventh graders

• Eighth graders

• They have the same median.

• Impossible to determine from the box plot.

A family is looking for a new home. The family is comparing homes in two towns. The median home price of Town 1 is ​$450,000. In Town 2, the median home price is ​$384,393. Based on the median home prices of each​ town, what inference can be​ made?

• The homes in Town 2 are more expensive.

• The homes in Town 1 and Town 2 are similarly priced.

• The homes in Town 1 are more expensive.

Kayla randomly surveyed the eighth-grade classes at her school and found that 12 of 50 own a pet. Based on these data, how many of the 150 eighth-grade students in Kayla's school would be expected to own a pet?

• 36

• 130

• 3

• 30

Tags

7.SP.2

Peter randomly surveys people at a shopping center about the type of home they live in. If Peter randomly surveys another 300 people, how many would he expect to live in an apartment?

• 11

• 132

• 72

• 96

Tags

7.SP.2

The food service manager at a school conducted a random survey of students to determine their preference for new lunch menu items. Select ALL the inferences that can be drawn from the manager's data.

• About twice as many students prefer pita sandwiches as those who prefer burritos.

• Burritos are the most preferred item.

• Almost half of the students preferred pita sandwiches

• About half as many students prefer the salad bar as those who prefer burritos.

• Twice as many students prefer pizza as those who prefer pita sandwiches.

Tags

7.SP.2

A random survey of seventh- and eighth-grade students was conducted to find how many hours they spent reading per week. Of the two sets of data, which has the greater median?

• 7th grade

• 8th grade

Tags

7.SP.3