Worksheets — Set 20

Algebra I · Data analysis with linear models

Print and write your answers. Use diagrams to show thinking.

Warm-up

1. Mean of data set: 21, 23, 25, 27, 29 = ___ 2. Median of the same set: ___ 3. Describe the distribution: skewed left/right/symmetric? ___

_See printable PDF for diagram._

Written practice

1. Mean of data set: 20, 22, 24, 26, 28 = ___ 2. Median of the same set: ___ 3. Describe the distribution: skewed left/right/symmetric? ___ 4. Correlation r = 2.3. Strength? ___ 5. Regression: interpret slope in context. 6. Why might correlation not imply causation? 7. Mean of data set: 23, 25, 27, 29, 31 = ___ 8. Correlation r = 2.6. Strength? ___

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More written practice

1. Mean of data set: 26, 28, 30, 32, 34 = ___ 2. Correlation r = 2.9. Strength? ___ 3. Mean of data set: 29, 31, 33, 35, 37 = ___ 4. Correlation r = 3.2. Strength? ___ 5. Mean of data set: 32, 34, 36, 38, 40 = ___ 6. Correlation r = 3.5. Strength? ___

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Patterns and rules

1. Mean of data set: 37, 39, 41, 43, 45 = ___ 2. Median of the same set: ___ 3. Describe the distribution: skewed left/right/symmetric? ___

_See printable PDF for diagram._

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Stretch

1. Mean of data set: 45, 47, 49, 51, 53 = ___ 2. Median of the same set: ___

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Parent tip: Label axes and units on displays