Illustrative Math - Algebra 1 - Unit 1- Lesson 15

Twenty students participated in a psychology experiment which measured their heart rates in two different situations. What are the appropriate measures of center and variability to use with the data?

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Twenty students participated in a psychology experiment which measured their heart rates in two different situations. Which situation shows a greater typical heart rate?

• Situation A.
• Situation B.

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Twenty students participated in a psychology experiment which measured their heart rates in two different situations. Which situation shows greater variability?

• Situation A.
• Situation B.

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The data set and some summary statistics are listed.11.5, 12.3, 13.5, 15.6, 16.7, 17.2, 18.4, 19, 19.5, 21.5mean: 16.52median: 16.95standard deviation: 3.11IQR: 5.5How does adding 5 to each of the values in the data set impact the shape of the distribution?

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The data set and some summary statistics are listed.11.5, 12.3, 13.5, 15.6, 16.7, 17.2, 18.4, 19, 19.5, 21.5mean: 16.52median: 16.95standard deviation: 3.11IQR: 5.5How does adding 5 to each of the values in the data set impact the measures of center?

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The data set and some summary statistics are listed.11.5, 12.3, 13.5, 15.6, 16.7, 17.2, 18.4, 19, 19.5, 21.5mean: 16.52median: 16.95standard deviation: 3.11IQR: 5.5How does adding 5 to each of the values in the data set impact the measures of variability?

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Here are two box plots: Which box plot has a greater median?

• Box Plot A
• Box Plot B

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Here are two box plots: Which box plot has a greater measure of variability?

• Box Plot A
• Box Plot B

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Here are two box plots: Which box plot has a greater median?

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The depth of two lakes is measured at multiple spots. For the first lake, the mean depth is about 45 feet with a standard deviation of 8 feet. For the second lake, the mean depth is about 60 feet with a standard deviation of 27 feet.Noah says the second lake is generally deeper than the first lake. Do you agree with Noah?

• Yes, I agree with Noah.
• No, I disagree with Noah.

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