Suppose for freshmen students at a small college, both math and verbal SAT scores have a mean of 500 and a standard deviation of 100. For y=math SAT and a=verbal SAT score, the regression equation is y = 250 + 0.5x a) Interpret the slope in context of the problem. (Note that verbal SAT scores range from 200 to 800 so y-intercept doesn't have meaningful interpretation in context). b) If a student's verbal score is 600, what is the predicted math SAT score? c) It is known that r = biz where r is correlation, b=slope of regression equation, s, sample standard deviation of x, s, sample standard deviation of y. Find correlation. Interpret (its sign (+/-), strength). d) Find r then interpret