If two samples of size 50 and 100 have variances 16 and 25 respectively, combined variance depends on:

Type: MCQ • Marks: 1

A. Means and Variances of both samples

B. Variances only

C. Sizes only

D. None of these

Explanation

Combined variance formula requires sizes (n1, n2), sample means (xbar1, xbar2), and sample variances (s1^2, s2^2).

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UP TGT Mathematics

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