A college tested for linear correlation between its statistics students' attitude ratings (x) and grades (V) by using a random sample of 14 students. In this test, the significance level was a = 0.10, the test statistic was r = -0.555, the regression equation was y = 1.6r - 18.49, the mean attitude rating (2) was 62.95, and the mean grade (y) was 78.13. Find the best predicted grade for a student whose attitude rating is 64.2. 62.95 82.23 84.23 78.13 None of these

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