Mean of 7 numbers was found to be 50. Later on it was detected that a number 72 was
misread as 27. Find the correct mean of the observations.
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Mean of 7 numbers was found to be 50. Later on it was detected that a number 72 was
misread as 27. Find the correct mean of the observations.
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Verified answer
Answer:
56.4
Step-by-step explanation:
Given mean of 7 numbers = 50
Sum of 7 numbers = 50x7= 350
But 72 was read as 27
Correct sum of 7 numbers = 350-27+72=395
Thus , correct mean =395/7=56.4