The line of regression of marks in Statistics (X) and marks in Accountancy (Y) for a class of 50 students is 3y − 5x + 180 = 0. The average score in Accountancy is 44 and the variance of marks in Statistics is (9/16)th of variance of marks in Accountancy.

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TextVariance of a Random Variable2 sub-questions

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TextVariance of a Random Variable