Explained Variation Using the pizza subway fare costs in Table 10-2, we have found that the linear correlation coefficient is r = XXXXXXXXXXWhat proportion of the variation in the subway fare can be...

Explained Variation
Using the pizza subway fare costs in Table 10-2, we have found that the linear correlation coefficient is r = 0.988. What proportion of the variation in the subway fare can be explained by the variation in the costs of a slice of pizza?

Table 10-2 Costs of a Slice of Pizza and Subway Fare (in dollars)