Chapter 3 Homework

Reading

Section 3.1: Scatterplots

Read:

Summery pp. 121-2
Scatterplots pp. 111-112
Interpreting Scatterplots, pp. 113-115
Categorical Variables in Scatterplots, pp. 117-120

Section 3.2: Correlation

Read:

Summery pp. 134-135
Correlation r, pp. 128-130
Facts about correlation, pp. 131-133

Section 3.3: Least Squares Regression

Read:

Summery p. 160
Regression Line, pp. 137-142
Example 3.11 (p. 144)
r², residuals, residual plots, and Influential Observations, pp. 151-158

Exercises

Section 3.1

3.8 (p. 116-7)
3.9 (p. 120)
3.11 (p. 123)
3.14 (p. 125-6)

Section 3.2

3.25 (p. 135)
3.27 (p. 136)
3.28 (p. 136)
3.30 (p. 136)

Section 3.3

3.32 (p. 142)
3.34 (p. 143)
3.39 (p. 159)
3.44 (p. 161)
3.45 (p. 161)
3.51 (p. 166)
3.52 (p. 168-170)

Terms

Scatterplots, Correlation, Regression Line,r,r², Residuals, Residual Plots, and Influential Observations

Skills

Making and Interpreting Scatterplots, Regression Lines, and Residual Plots