Question

1. Find the pearson correlation coefficient between sales (in thousands rupees) of the following.

FIRM 1 2 3 4 5 6 7 8 9 10

Sales 50 50 55 60 65 65 65 60 60 50

Expenses 11 13 14 16 16 15 15 14 13 13

2. Calculate the regression from the following data.

X 75 88 95 70 60 80 81 50

Y 120 134 150 115 110 140 142 100

Answer 1

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