The mean of 10 observations was calculated as 40. It was detected on rechecking that the value of 45 was wrongly copied as 15. Find the correct mean.
Answers
Answered by
37
Wrong mean = 40
No. of observations = 10
Total of 10 observations = 40 X 10 = 400
Correct Total = 400 - 15 + 45 = 430
Correct Mean = 430/10 = 43
If it helped you, please mark the answer as the Brainliest. Please!
No. of observations = 10
Total of 10 observations = 40 X 10 = 400
Correct Total = 400 - 15 + 45 = 430
Correct Mean = 430/10 = 43
If it helped you, please mark the answer as the Brainliest. Please!
Similar questions