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The mean of five observations is 5 and t...

The mean of five observations is 5 and their variance is 9.20. If three of the given five observations are 1,3 and 8, then a ratio of other two observations is

A

`4:9`

B

`6:7`

C

`5:8`

D

`10:3`

Text Solution

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The correct Answer is:
A
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