Which data point(x , y)in the scatter plot above would have thegreatesteffect on correlation coefficient (regression line) when point is removed?Answer 1Choose...0.7523(30, 49)1.251.33(40, 55)(60, 68)1(55, 70)(45, 61)(B)Which data point(x , y)in the scatter plot above would have theleasteffect on correlation coefficient (regression line) when point is removed?Answer 2Choose...0.7523(30, 49)1.251.33(40, 55)(60, 68)1(55, 70)(45, 61)(C)Suppose the points (30,52) and (50, 67) are on the regression line. What is the rate of change of regression line? (two decimal places)Answer 3Choose...0.7523(30, 49)1.251.33(40, 55)(60, 68)1(55, 70)(45, 61)(D)How many points would the regression line predict the test score increase by if study time increased by 4 hours.

The following scatter plot along with the least- squares regression line shows a linear association between a person's study time and result on a specic test. as .4 Test Results, Y 0') 0 0| (0 30 35 40 45 50 55 60 65 Study Time (Hours), X Plot of Study Time Versus Test Results