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Find the correlation coefficient

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Reference no: EM13282161

Need to find the correlation coefficient for this table

Subject

Times per week in library (X)

Grade (Y)

XY

X2

Y2

1

5

96

480

25

9216

2

4

92

368

16

8464

3

3

75

225

9

5625

4

5

100

500

25

10000

5

2

69

138

4

4761

6

4

86

344

16

7396

7

4

91

364

16

8281

8

3

77

231

9

5929

9

2

65

130

4

4225

10

5

97

485

25

9409

?

37

848

3745

149

73306

Sum of X = 37
Sum of Y = 848
Sum of XY = 3745
Sum of X2 = 149
Sum of Y2 = 73306
N = 10

Reference no: EM13282161

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