For a set of n = 10 pairs of scores with $\Sigma $X = 10, $\Sigma $Y = 40, and $\Sigma $XY = 50, the sum of products of deviation is SP = 10.

Question

Quizplus · Accepted Answer

The sum of products of deviation is calculated as SP = $\Sigma $XY - $\frac{(\Sigma $X)(\Sigma \)Y}{n}. Substituting the given values, we get SP = 50 - $\frac{(10)(40)}{10}$ = 50 - 40 = 10. Therefore, the given statement is true.

For a Set of N = 10 Pairs of Scores Σ\Sigma Σ

For a Set of N = 10 Pairs of Scores $\Sigma$