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If the sum and mean of the data are 418 ...

If the sum and mean of the data are 418 and 11 respectively then the no. of observation is the data is:

A

35

B

36

C

37

D

38

Text Solution

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The correct Answer is:
d
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Knowledge Check

  • If the sum and mean of a data are 407 and 11 respectively, then the number of observations in the height is ___.

    A
    `47`
    B
    `37`
    C
    `57`
    D
    `41`

  • If the mean and standard deviation of a data are 8 and 2 respectively then the co-efficient of variation is ___.

    A
    0.16
    B
    0.25
    C
    0.52
    D
    0.61

  • Mean and standard deviation of a data are 48 and 12 respectively. The coefficient of variation is .............

    A
    `42`
    B
    `25`
    C
    `28`
    D
    `48`

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