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Question

In a retail market, fruit vendors were selling mangoes kept in packing boxes. These boxes contained varying number of mangoes. The following was the distribution of mangoes according to the number of boxes.
No. of mangoes
5052
5355
5658
5961
6264
No. of boxes
15
110
135
115
25
If mean number of mangoes kept in a pocket box. Which method of finding the mean did you choose?

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Solution


ForgroupeddatawhenClassIntervalisgiven,wefindtheClassMark.ClassMark=midpointofaninterval=(Lowerlimit+Upperlimit)2ClassMarkistakenasxiforeachclassinterval,findxifi.NowMean=ΣxifiΣfi=22875400=57.1875=57.19
254525_235939_ans_b72e891b9bcc4be6b043eff8ba29d1ee.JPG

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