A computer while calculating correlation coefficient between two variables X and Y from 25 pairs of observations obtained the following results: n = 25, ΣΧ = 125, ΣΧ2 = 650, ΣΥ2 = 460, ΣῪ = 100, EXY = 508 • If was, however, later discovered at the time of checking that he had copied down two pairs as X Y while the correct values were X Y Obtain the correct value of correlation . 6 14 8 12 9 6 6 8 coefficient.

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A computer while calculating correlation coefficient between two
variables X and Y from 25 pairs of observations obtained the following results:
ΣΧ = 125, ΣΧ2 = 650, ΣῪ = 100,
n = 25,
ΣΥ2 = 460,
EXY = 508
If was, however, later discovered at the time of checking that he had copied down two pairs as
X
Y while the correct values were X
Y
Obtain the correct value of correlation
6
14
8
12
9
6
8
coefficient.
6
Transcribed Image Text:A computer while calculating correlation coefficient between two variables X and Y from 25 pairs of observations obtained the following results: ΣΧ = 125, ΣΧ2 = 650, ΣῪ = 100, n = 25, ΣΥ2 = 460, EXY = 508 If was, however, later discovered at the time of checking that he had copied down two pairs as X Y while the correct values were X Y Obtain the correct value of correlation 6 14 8 12 9 6 8 coefficient. 6
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