a) The following table shows verbal reasoning test score, x, and an English test score, y,...

 

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a) The following table shows verbal reasoning test score, x, and an English test score, y, for each of a random sample of 8 children who took both tests. G H 112 114 109 113 75 Child A B. D E F 112 113 110 113 y 69 65 75 70 70 68 76 Calculate the Co-efficient of correlation "" between the scores in verbal reasoning and English. b) The age (X) and systolic blood pressure (Y) of 100 individuals gave the following sums: ΣΧ-4421 ΣΥ-12130 Σx-20834 , Σ-1498976 ΣΧΥ-542735 Determine the equation of the least squares regression line of Y on X. a) The following table shows verbal reasoning test score, x, and an English test score, y, for each of a random sample of 8 children who took both tests. G H 112 114 109 113 75 Child A B. D E F 112 113 110 113 y 69 65 75 70 70 68 76 Calculate the Co-efficient of correlation "" between the scores in verbal reasoning and English. b) The age (X) and systolic blood pressure (Y) of 100 individuals gave the following sums: ΣΧ-4421 ΣΥ-12130 Σx-20834 , Σ-1498976 ΣΧΥ-542735 Determine the equation of the least squares regression line of Y on X.

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A D E 1 Y XY X2 Y2 2 112 69 7728 12544 4761 3 113 ... View the full answer