The mean of 50 observations was 36. it was found later that an observation 48 was taken wrongly as 23. what is the new mean?
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Answered by
24
Correct Sum = (36 X 50 + 48 - 23) = 1825.
Correct mean = = 1825/50 = 36.5
Correct mean = = 1825/50 = 36.5
Answered by
11
Answer:
36.5
Step-by-step explanation:
50 observations=36*50=1800
48 was take as 23,so
1800-23+48=1825
now,1825/50=36.5
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