Q No.6) a) The following table shows verbal reasoning test score, x, and an English test score, y, for cach of a random sample of 8 children who took both tests. C D 110 75 E FG H 113 112 114 109 113 70 75 Child B 113 112 A 69 65 70 68 76 Calculate the Co-efficient of correlation "r" 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 ΣΧ-208349 , ΣΥ)1498976, ΣχΧ-542735 ΣΥ1498976 ΣΧ.y= %3D Determine the equation of the least squares regression line of Y on X.

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Q No.6) 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.
Child
B
D
E
F
G
H
112
113
110
113
112
114
109
113
у
69
65
75
70
70
75
68
76
Calculate the Co-efficient of correlation “r" 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 Σ x? = 208349, ΣΥ-
- 1498976 ΣΧ.y
= 542735
%3D
Determine the equation of the least squares regression line of Y on X.
Transcribed Image Text:Q No.6) 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. Child B D E F G H 112 113 110 113 112 114 109 113 у 69 65 75 70 70 75 68 76 Calculate the Co-efficient of correlation “r" 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 Σ x? = 208349, ΣΥ- - 1498976 ΣΧ.y = 542735 %3D Determine the equation of the least squares regression line of Y on X.
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