The mean of 10 observations was calculated as 40. On rechecking. It was
detected that the number 45 was incorrectly copied as 15. Find the correct mean
please give the Ans with calculation plsssssss
Answers
Answered by
28
Answer:
43
Step-by-step explanation:
Mean of 10 observations= 40
Sum of 10 observations= 40 x 10 = 400
Correct sum of 10 observations= 400-15+45
= 430
Correct mean= 430/ 10 = 43
Therefore, Correct mean of 10 observations is 43
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