JEE MATHEMATICS MCQ: STATISTICS

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The co-efficient of rank correlation of marks obtained by 10 students in Statistics and Accountancy was found to be 0.2 . It was later discovered that the difference in ranks in the two subjects obtained by one of the students was wrongly taken as 9 instead of 7 . The correct value of co-efficient of rank correlation is

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Correct option: B

0.39

Option B (0.39) is correct because it correctly adjusts the rank correlation coefficient after correcting the error in the difference of ranks.

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\bar X,

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