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Prateek Asked :

04-10-2021 Total Quality Management

Q. If the variance of the data 2, 4, 5, 6, 8, 17 is 23.33. Then, what is the variance of 4, 8, 10, 12, 16, 34?

A. 40
B. 42.55
C. 46.66
D. 49


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Dapzoi Verified
Commented on 2021-10-04 16:34:21 (IST)
Answer: C

Explanation: When each observation in a given data set is multiplied by a constant, the variable also gets multiplied by the same constant. Here, the constant=2 and the original variance is 23.33. The new variance is 23.33*2=46.66.