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Question 1 Mr Stat is hoping to determine if he can predict the score of a test based on the number of hours a student used to prepare. The test scores of 6 randomly picked students and number of hours they prepared are as follows: 5 10 74 91 95 87 10 9 Hours Score 4 69 6 86 a) What is the explanatory variable? b) What is the response variable? c) What is the regression equation? (Use y for the response variable and for the explanatory variable) d) What is the correlation coefficient, r? (Round answer to 3 decimal places.) e) What is the coefficient of determination, r? (Write as a decimal rounded to 3 decimal places.)