Inferences and Predictions

Question 1

A survey was conducted asking people about their favorite fruit. Which inferences about the population are true based on the data? Check all that apply.

Revolt · Accepted Answer

About twice as many people prefer apples as prefer bananas.; Bananas are preferred much less frequently than apples or oranges.; The samples show little variation for each fruit.

Question 2

What is the ratio of the average number of bass to the average number of fish in each sample? ✔ 7/202/59/201/2

Revolt · Accepted Answer

7/20

Question 3

For women, the most frequently worn item of clothing is .

Revolt · Accepted Answer

pants

Question 4

Which inference is true?

Revolt · Accepted Answer

About the same number of students spend 0-30 minutes on homework as spend 31-60 minutes.

Question 5

Take two samples of fish from a pond and analyze the results. What is the average number of bass found in both samples?6✔ 789

Revolt · Accepted Answer

7; 7/20

Question 6

The table shows two samples of fish from a pond. If 400 fish are in the pond, which proportion represents the average number of bass you would expect to live in the pond?

Revolt · Accepted Answer

Answer image: https://r15.core.learn.edgenuity.com//media.edgenuity.com/EVresources/3107-06-04-30-06-task/mc001-3.jpg

Question 7

The expected number of trout in the population is .

Revolt · Accepted Answer

1,000

Question 8

Which are valid inferences? Check all that apply.

Revolt · Accepted Answer

About twice as many trout were in the pond at the time the second sample was taken.; Fewer bass were in the pond at the time the second sample was taken.; About the same number of catfish were found in both samples.

Question 9

Make an inference about which fish increased its predicted average population from Year 1 to Year 2.

Revolt · Accepted Answer

Trout increased its predicted average population.

Question 10

Which pair of Linda’s samples seems to have the lowest variability and, therefore, are representative samples?

Revolt · Accepted Answer

samples 1 and 2

Inferences and Predictions Answers

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