Question

# For finding mean by assumed mean method  ¯¯¯x = a + (∑f×d)∑f  Find the physical representation of a,d and f.

Solution

## In assumed mean method ,  ¯¯¯x = a + (∑f×d)∑f  where , a is the assumed mean                                                 d is the deviation from assumed mean ie xi -a                                               f is the frequency

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