Mean of 100 observations is found to be 40. If at the time of computation two items are wrongly taken as 30 and 27 instead of 3 and 72, find
the correct mean.
(Ans-40.18)
Answers
Answered by
10
Explanation:
mean = sum of observation / number of
observation
sum of observation= no of
observation × mean
100 × 40 = 4000
30 + 27 = 57
3 + 72 = 75
75 - 57 = 18
4000 + 18 = 4018
4018 / 100 = 40.18
hope it will help you .
Answered by
3
Answer:
sum of observations up on total number of observations.
answer is 40.18.............xd.
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