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

Plot and label each number on the number line.

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6.NS.C.6

Teachers held a basketball shooting contest. Their goal was to make 60 baskets. For each teacher, determine what percentage of the goal they achieved. Teacher A made 12 baskets. Teacher B made 42 baskets. Teacher C made 66 baskets. Teacher D made 9 baskets.

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6.RP.A.3.c

A survey was conducted of a random sample of 15 sports team coaches in a school district, and found that 6 of them were in favor of a shorter season for their sport. The school district has 132 sports team coaches. Make an estimate for the number of coaches in the school district who are in favor of a shorter season for their sport. Do you think it would be surprising if 99 coaches were in favor? Explain your reasoning.

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6.RP.A.3

7.RP.A.3

Do you think it would be surprising if 60 coaches were in favor? Explain your reasoning.

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6.RP.A.3

7.RP.A.3

Select all the measures of center.

• mean

• IQR (interquartile range)

• MAD (mean absolute deviation)

• median

• range

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6.SP.B.5.c

Jada completed eleven homework assignments. This list shows her scores for each assignment. 10, 9, 8, 10, 7, 9, 8, 6, 10, 10, 8 What is the median score?

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6.SP.A.3

6.SP.B.5.c

What are the first quartile and the third quartile? What is the interquartile range?

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6.SP.A.3

6.SP.B.5.c

Two students compared their test scores. Here are the scores for each student. Student A: 91, 100, 82, 90, 93, 85 Student B: 80, 70, 58, 98, 75, 81 Construct two box plots, one for the data for each student. Which student’s scores show greater variability? Explain how you know.

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6.SP.B.4

6.SP.B.5

The data set shows the number of shells that 12 people collected. 4, 5, 5, 4, 1, 6, 8, 2, 2, 2, 4, 5 What is the mean number of shells collected? What is the MAD (mean absolute deviation) of this data? Explain how you know.

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6.SP.B.5.c