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What's on the worksheet
- A marine biology class measures shore crabs from 30 to 75 mm across the shell (made-up data):
- An ecologist counts the plant species on wooded islands in a large lake (made-up data).
- A glassblower makes hourglasses with different neck widths and times how long 100 grams of the same sand takes to run through (made-up data).
- A biology class measures eight fig leaves (made-up data):
- A park survey records eight streams (made-up data):
- A genetics class starts a colony of fruit flies in a jar and counts the flies every second day (made-up data).
- A regional study of towns (made-up data) fits y on x, where x is a town's population in thousands and y the number of hair salons, and…
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Log-log transforms and power models: the lesson ›More Chapter 2 worksheets: Exploring two-variable data
- 2.1Conditional relative frequencies
- 2.2Association in a two way table and segmented bar graphs
- 2.3Describing a scatter plot
- 2.4The correlation coefficient
- 2.5Interpreting a residual
- 2.6Making and reading residual plots
- 2.7Correlation from standardized values
- 2.8The least squares criterion and its line
- 2.9Slope from r and the spreads, and regression to the mean
- 2.10r squared and the standard deviation of the residuals
- 2.11Reading regression output
- 2.12Outliers, leverage and influential points
- 2.13Transforming to linearity: logs and exponential models
- 2.14Log-log transforms and power models