Q. 3 A4.5( 2 Votes )

# Find the mean, an

Given, The data is given in table/

To Find: Find the standard deviation

The formula used: SD =

Explanation:

Now, N=109, ,

Mean

100×2.396

Variance = 239.6

Standard Deviation

SD = 15.47 years

Hence, The standard deviation is 15.47

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