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Find the mean deviation about the mean f...

Find the mean deviation about the mean for the data : `4, 7, 8, 9, 10 , 12 , 13 , 17`

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Here `n=8`
`:.` Mean `barx=(sumx_(i))/n=80/8=10`
Mean deviation `=(sumd_(i))/n=24/8=3`
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Knowledge Check

  • What is the mean deviation about the mean for the data 4, 7, 8, 9, 10, 12, 13, 17?

    A
    2.5
    B
    3
    C
    3.5
    D
    4

  • What is the mean deviation about the mean for the data 4, 7, 8, 9, 10, 12, 13 and 17?

    A
    2.5
    B
    3
    C
    3.25
    D
    4

  • Find the mean deviation about the mean for the following data : 6, 7, 10, 12, 13, 4, 8, 12.

    A
    3.76
    B
    2
    C
    2.75
    D
    2.55

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