N 25 )X= 125 SX2 = 650 EY2 = 460 EXY = 508 t was, however, later on discovered at the time of checking that it had copied down tw
N 25 )X= 125 SX2 = 650 EY2 = 460 EXY = 508 t was, however, later on discovered at the time of checking that it had copied down tw
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Transcribed Image Text:A computer while calculating the correlation co-efficient between the variables X and Y obtained the following values.
N = 25
)X= 125
SX2 = 650
2y= 100
EY2 = 460
EXY = 508
It was, however, later on discovered at the time of checking that it had copied down two pairs of observations as :
X
Y
14
8
While actual values were
Y
12
8
Obtained the correct value of correlation coefficient between X and Y.
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