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The mean of 100 observations was calculates as 35. It was found later on that one of the observations was misread as 73 instead of 37. The correct mean is


A) 33.64

B) 34.64

C) 32.64

D) 64.34

Correct Answer:
B) 34.64

Description for Correct answer:
Correct sum = (35 X 100 + 37 - 73) = 3464
Correct mean = 3464 / 100 = 34.64


Part of solved Average questions and answers : >> Aptitude >> Average




Comments
Answer will be 35.64 will be the answer as 35× 100 will give you 3500 not 3400 as mentioned above
- anjali,murkute





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