A computer while calculating correlation coefficient between two variables X and Y from 25 pairs of observation obtained the following results: n=25, 2X=125, EX2 = 650, Y=100, Y2= 460, 2XY=508. But on subsequent verification it was found that he had copied down two pairs as (6,14) and (8,6) while the correct values were (8,12) and (6,8). Obtain the correct value of correlation coefficient?

A computer while calculating correlation coefficient between two variables X and Y from 25 pairs of observation obtained the following results: n=25, 2X=125, EX2 = 650, Y=100, Y2= 460, 2XY=508. But on subsequent verification it was found that he had copied down two pairs as (6,14) and (8,6) while the correct values were (8,12) and (6,8). Obtain the correct value of correlation coefficient?

Calculus For The Life Sciences

2nd Edition

ISBN:9780321964038

Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Chapter1: Functions

Section1.2: The Least Square Line

Problem 1E

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