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For two data sets each of size 5, ...

For two data sets each of size 5, then variances are given to be 4 and 5 and the corresponding means are given to be 2 and 4 respectively the variance of the combined data set is

A

`5/2`

B

`11/2`

C

6

D

`13/2`

Text Solution

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The correct Answer is:
B
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