1 : You have figured the "regression coefficient" to be 2.99; the mean of the "predictor variable" is 9.31, and the mean of the "criterion variable" is 7.81. What is the "regression constant? Round to two decimal places when answering this question. Question 4: In a regression equation (linear prediction rule), the value of a is 72 and the value of b is 15. An individual has a score of 13 on X. The person's predicted score on Y is: Question 6: In a regression equation (linear prediction rule), the value of a is 72 and the value of b is 15. An individual has a score of 13 on X. The person's predicted score on Y is