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Calculate arithmetic mean of the followi...

Calculate arithmetic mean of the following frequency distribution:
`{:("Class","less than 10",10-20,20-30,30-40,40-50,50-60,"more than 60"),("Frequency"," "5," "12," "18," "22," "6," "4," "3):}`

Text Solution

Verified by Experts

The correct Answer is:
Arithmetic Mean = 30. 14
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Knowledge Check

  • The median class in the following frequency distribution is {:("Class interval :",0-10,10-20,20-30,30-40,40-50),("Frequency :",12,13,25,20,10):}

    A
    `10-20`
    B
    `20-30`
    C
    `30-40`
    D
    none of these

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