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Sampling to Draw Inferences About Populations

Authored by Anthony Clark

Mathematics

7th Grade

CCSS covered

Sampling to Draw Inferences About Populations
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15 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

In order to use samples to estimate something from the population, the sample should be _________________ the population.

exactly the same as

nothing like

representative of

larger than

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Darrien surveys 60 of the actors theater class. He concludes that 8 out of 15 actors have previous acting experience. What is the sample size?

60

8

15

53

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

What inference can you draw by comparing the interquartile ranges?

There is more variability in the number of days that Team A members trained because the IQR for Team A is greater than the IQR for Team B.

There is more variability in the number of days that Team B members trained because the IQR for Team B is greater than the IQR for Team A.

Team A members generally trained for more days than Team B members

Team B members generally trained for more days than Team A members

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the sample?

All students at Commodore

All students in section 702

The 10 students Mr. Cardarella picks

All students in 7th grade

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Mr. Cardarella wants to know section 702's favorite food. He picks 10 students in 702 to ask. What is the population?

All students at Commodore

All students in section 702

The 10 students Mr. Cardarella picks

All students in 7th grade

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

15

27

45

75

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

100 second graders were asked to do a book report about one of these four zoo animals.  The number of students who chose each animal is shown in the table.  If 250 second graders had to choose of of the four animals, predict how many would choose to write about a giraffe.

60 students

50 students

40 students

30 students

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