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Find the mean of the following frequency...

Find the mean of the following frequency distribution :
`{:("Class ",0-20,20-40,40-60,60-80,80-100),("Frequency "," "15," "18," "21," "29," "17):}`

Text Solution

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The correct Answer is:
53,53,53
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In the following frequency distribution, the modal class is . . . . . {:("Class ",0-20,20-40,40-60,60-80,80-100),("Frequency "," "8," "15," "22," "25," "10):}

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Knowledge Check

  • In the following frequency distribution, the median class is . . . . . {:("Class ",10-20,20-30,30-40,40-50,50-60),("Frequency "," "12," "18," "25," "15," "10):}

    A
    `10-20`
    B
    `20-30`
    C
    `30-40`
    D
    `40-50`

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