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The mean and variance of eight observati...

The mean and variance of eight observations are 9 and 9.25, respectively. If six of the observations are 6, 7, 10, 12, 12 and 13, find the remaining two observations.

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Knowledge Check

  • The mean and variance of 7 observations are 7 and 22 respectively. If 5 of the observations are 2, 4, 10, 12, 14, then the remaining 2 observations are

    A
    4, 3
    B
    2, 5
    C
    6, 1
    D
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  • The mean and variation of 7 observations are 8 and 16 respectivelh. If 5 of the observations are 2,4,10,12,14 then the remaining two observations are

    A
    6,8
    B
    5,6
    C
    9,10
    D
    None of these

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