Question: In Exercise 34 you found the linear regression equation = 0.57x - 6.68, where y is the percentage of Americans who gamble online at age

In Exercise 34 you found the linear regression equation = 0.57x - 6.68, where y is the percentage of Americans who gamble online at age x years.
a. Use the model predict the percentage of 30-year-old Americans who gamble online.
b. What is the slope? What does it mean in this situation?
c. Use the model to predict the age at which 16% of Americans gamble.
d. Refer to Table 47 to find the coefficient of determination. What does it mean in this situation?

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 54.5 70 Online 14 18 20 37

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