inferences from data

In an effort to try to convince her mother that she is too old to join the intermediate swim​ class, Mira, who is 13 years​ old, gathers data on the ages of a random sample of members of the current intermediate swim class. The results of the data collected by Mira are displayed in the dot plot shown.

• It is likely that she will be able to convince her mother.​ Mira's age is within the area where the data are clustered.

• It is likely that she will be able to convince her mother.​ Mira's age is to the left of the area where the data are clustered.

• It is unlikely that she will be able to convince her mother.​ Mira's age is within the area where the data are clustered.

• It is unlikely that she will be able to convince her mother.​ Mira's age is to the left of the area where the data are clustered.

Tags

CCSS.7.SP.A.2

What happened to the Hare population after the decrease in Lynx population in 1860?

• The decrease of lynx led to an increase in the amount of hares.

• The decrease of lynx led to a decrease in the hare population.

• The hare population stayed the same.

Which of the following changes occurred when the wolf was introduced back into Yellowstone National Park? (Select all that apply)

• The elk population increased.

• The rivers stabilized.

• The amount of producers increased.

• The population of bears increased.

• The beavers returned.

How did the increased population of wolves in year 5 affect the deer population in year 6?

• The increase in wolves led to a decrease in deer.

• There was no effect because the data showed that the population stayed the same.

• The increase in wolves led to an increase in deer.

Tags

CCSS.HSS.ID.B.6A

Which of the following statements is an inference about the picture

• The vase is broken.
• The girls' bow is blue and purple.
• The girl broke the vase.
• The girl has blonde hair.

Tags

CCSS.RI.6.1

CCSS.RI.7.1

CCSS.RL.5.1

CCSS.RL.6.1

CCSS.RL.7.1

Calculate the mean.

• 29

• 29.5

• 28.5

• 33

Tags

CCSS.6.SP.B.5C

The following dot plots show the amount of time it takes each​ person, in a random​ sample, to complete two similar problems. Make a comparative inference about the two problems.

• The problems are equally challenging.

• Problem 2 is more difficult because it took students longer on average.

• Problem 1 is more difficult because it took students longer on average.

Tags

CCSS.7.SP.B.4

Sonya randomly surveys 26 seventh graders to gather data about the amount of time spent each week using the Internet. Sonya records the data in the dot plot shown. What is the median of the data set?

• 7

• 7.5

• 8

• 7.25

Tags

CCSS.6.SP.B.5C

The following shows the number of calls two radio shows get each day for a ten day period. The two shows are on at the same time. Make a comparative inference based on the median values.

• Show 1 usually receives more calls.

• Show 2 usually receives more calls.

• The shows usually receive equal numbers of calls.

• There is not enough data to draw an inference.

Tags

CCSS.7.NS.A.3

A random survey of 7th graders finds that 7 out of 10 have more than 1 hour of screen time each day. If there are 110 7th graders in your school, how many would you expect to have more than 1 hour of screen time?

• 77

• 70

• 75

• 81

Tags

CCSS.7.SP.A.2