Question

Find out the Mean deviation from Mean for the following frequency distribution:

X: 1 2 3 4 5 6 7

F: 12 11 15 25 14 15 8​

Answer 1

Answer:

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Step-by-step explanation:

Mean = $\frac{fi xi}{fi\\}$ = $\frac{12 + 22 + 45 + 100 + 70 + 90 + 56}{100\\}$ = $\frac{395}{100}$ = 3.95

using mean value , u can find mean deviation using formula

$\frac{fi |xi -\frac{}{x} |}{fi}$