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What's on the worksheet
- One Saturday, a ski slope recorded every visitor by age and by whether they rented skis or brought their own (made-up data).
- A made-up middle school asked 190 students how they usually get to school.
- A made-up school greenhouse grew 95 pepper plants.
- A made-up ferry carried 240 passengers one day:
- A made-up survey asked sixth and eighth graders whether they bring lunch from home.
Teach it first
The free lesson teaches it with worked examples and practice problems.
Conditional relative frequencies: 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