Asked by Pander
The mean marks obtained in an examination by a group of 100 students were found to be 49.46 the mean marks obtained in same examination by a group of 200 students were 52.32 find out mean of marks obtained by both the groups together
Answers
Answered by
bobpursley
Mean*total=49.46*100+52.32*200=15410 and total is 300
mean=51.37
Answered by
abay
utility any object or circumstance can be considered.
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