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Health insurance administrative costs are the concern for many companies which supply the insurance for their employees. The information below is information collected recently. Let x be the average number of employees in a group health insurance plan and y be average administrative cost as the percentage of claims. Find out the sample correlation coefficient.

x

4

14

20

47

70

y

43

42

34

18

18

A. -0.914

B.  -0.942

C. 0.887

D. 0.942

E.   -0.887

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