MCQ
સંખ્યાઓ $3, 4, 5, 6, 7 $ નું સરેરાશ વિચલન શોધો.
- A$1.2$
- B$2.4$
- C$1.8$
- D$3.2$
સરેરાશ વિચલન $ =\frac{\Sigma |x_i-\bar x|}{n}$
$ = \,\,\,\frac{1}{5}\,\,[|3\,\, - \,\,5|\,\, + \,\,|4\,\, - \,\,5|\,\, + \,\,|5\,\, - \,\,5|\,\, + \,\,|6\,\, - \,\,5|\,\, + \,\,|7\,\, - \,\,5|]\,\,\,\,\,\,\,\,\,$
$\, = \,\,\frac{1}{5}\,[2\,\, + \,\,1\,\, + \,\,0\,\, + \,\,1\,\, + \,\,2]\,\,\,\, = \,\,\frac{6}{5}\,\,\,\, = \,\,1.2$
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