The mean of 100 items is 80. By mistake one item is misread as 92 instead of 29. Find the correct mean.
Answers
Answered by
2
Answer:
sum of mean = 100 × 80
= 8000
cortest mean = 8000 - 92 - 29
= 7879
correct mean = 7879 ÷ 100
= 78.79 ans ...
Answered by
1
correct answer is=79.37
Explanation:-
Mean=100*80
=8000.
Correct mean=mean-wrong mean+correct mean
= 8000-92+29
= 7937
Answer=7937/100
=79.37
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