The mean and variance of 5 observations of an experiment are 4 and 5.2 respectively. If from the....

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The mean and variance of 5 observations of an
\( \mathrm{P} \)
experiment are 4 and 5.2 respectively. If from these observation three are 1,2 and 6 then the remaining will be-
(1) 2,9
(2) 5,6
(3) 4,7
(4) 3,8
.


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