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The values in X below are hours spent studying, and the values in Y are grades...

The values in X below are hours spent studying, and the values in Y are grades on a test. Find the Correlation Coefficient of two variables. X = {3.2, 3.0, 1.0, 2.5, 1.9, 1.6, 3.1, 3.5, 4.2, 3.0} Y = {90, 88, 57, 86, 79, 71, 84, 97, 90, 91}

A. 0.706

B. 0.737

C. 0.803

D. 0.889

E. 0.982

math   Statistics-And-Probability   
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Answer #1

米 Solutī0 n :- Gaiven that: x | 3.2 | 3.0 lo 25 | 1.9 | 1.6 31 | 3.5 | Ч.2 3.0 | | y | 90 | 88 |57 | 86 |79 | 귀 | 84 | 9구 | | 91 nthisx ours Spent Stud ing YGrades on a test 2338.6 2구 : 833 : 8I16こ 179 = 8.95 1o O 826 Var (Y) LO LO 2.8 Cov (x,7) Correla Ron of coefficent = .9S 0.826 X 22.8) Correla tiom - 0- 889 tlence, Optfon D s Correct 0 Thank you

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