The percentages of Americans who gamble online are shown in Table 47 for various age groups.

Let y be the percentage of Americans who gamble online at age x years.
a. Construct a scatterplot.
b. Find the linear regression equation. Graph it on the scatterplot.
c. Construct a residual plot.
d. Find the age and the residual represented by the lowest dot in the residual plot. What does this tell you about the corresponding data point in the scatterplot and the regression line?
e. Find the age and the residual represented by the highest dot in the residual plot. What does this tell you about the corresponding data point in the scatterplot and the regression line?

Transcribed Image Text:

Table 47 Percentages of Americans Who Gamble Online Age Group years) 21-29 30-39 40-49 50-59 over 59 Age Used to Represent Age Group years) 25 34.5 44.5 S4.5 70 Online 14 18 20 37