Q. The mean of 50 observations was 36. It was found later that an observation 48 was wrongly taken as 23. The corrected new mean is
✅ Correct Answer: (B)
36.5
Explanation: Correct Sum = (36 * 50 + 48 - 23) = 1825.
Correct mean = = 1825/50 = 36.5
Correct mean = = 1825/50 = 36.5
Explanation by: Rohit Singh
Correct Sum = (36 * 50 + 48 - 23) = 1825.
Correct mean = = 1825/50 = 36.5
Correct mean = = 1825/50 = 36.5