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The variance of first 50 even natural nu...

The variance of first 50 even natural numbers is-

A

`(833)/(4)`

B

833

C

437

D

`(437)/(4)`

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Knowledge Check

  • There are natural numbers. Answer the following questions considering first natural numbers. Variance of first n natural numbers is -

    A
    `(n^(2)-1)/(6)`
    B
    `(n^(2)+1)/(12)`
    C
    `(n^(2)+1)/(12)`
    D
    `(n^(2)+1)/(6)`

  • Mean of first n natural numbers is

    A
    `(n(n-1))/2`
    B
    `(n(n+1))/2`
    C
    `((n+1))/(2n`
    D
    `((n+1))/(2`

  • The sum of the squares of first n natural numbers is -

    A
    `n^(2)`
    B
    `(n(n+1))/(2)`
    C
    `(1)/(6)n(n+1)(2n+1)`
    D
    `[(n(n+1))/(2)]^(2)`

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