The mean of 40 observations was 160. It was detected on rechecking that the value 169
was wrongly copied as 125 for computation of mean. Find the correct mean.
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Answered by
4
Step-by-step explanation:
= > 6400 = sum of 40 observations. Later on, it was detected on rechecking that the value of 165 was wrongly copied as 125 for computation of mean. Hence, the correct mean is 161
Answered by
3
Answer:
The correct answer is 40 observation
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