Grade 7 | Unit 8: Probability and Sampling | Check Your Readiness (A)

Select all the numbers that represent point A.

• 0.75

• 0.5

• 0.25

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6.NS.C.6

Students did push-ups for a fitness test. Their goal was 20 push-ups. For each student, determine what percentage of the goal they achieved.

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6.RP.A.3.c

Andre surveyed a random sample of 20 students and found that 13 of them were in favor of having school start one hour later. The school has 250 students. Make an estimate for the number of students in the school who are in favor of having school start one hour later.

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6.RP.A.3

7.RP.A.3

Andre surveyed a random sample of 20 students and found that 13 of them were in favor of having school start one hour later. Do you think it would be surprising if 150 students out of 250 were in favor? Explain your reasoning.

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6.RP.A.3

7.RP.A.3

Andre surveyed a random sample of 20 students and found that 13 of them were in favor of having school start one hour later. Do you think it would be surprising if 100 students out of 250 were in favor? Explain your reasoning.

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6.RP.A.3

7.RP.A.3

Select all the measures of variability or spread.

• mean

• IQR (interquartile range)

• MAD (mean absolute deviation)

• median

• range

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6.SP.B.5.c

Ten students each attempted 10 free throws. This list shows how many free throws each student made. 8, 5, 6, 6, 4, 9, 7, 6, 5, 9. What is the median number of free throws made?

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6.SP.A.3

6.SP.B.5.c

Ten students each attempted 10 free throws. This list shows how many free throws each student made. 8, 5, 6, 6, 4, 9, 7, 6, 5, 9. What is the IQR (interquartile range)?

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6.SP.A.3

6.SP.B.5.c

Two groups went bowling. Here are the scores from each group. Group A: 70, 80, 90, 100, 110, 130, 190 Group B: 50, 100, 107, 110, 120, 140, 150 Construct two box plots, one for the data in each group.

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6.SP.B.4

6.SP.B.5

Two groups went bowling. Here are the scores from each group. Group A: 70, 80, 90, 100, 110, 130, 190 Group B: 50, 100, 107, 110, 120, 140, 150 Which group shows greater variability? Explain how you know.

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6.SP.B.4

6.SP.B.5