The mean of 50 observations was 36. It was found later that an observation 46 was wrongly taken as 23. The corrected new mean is Choose the correct choice from the following answers
A) 35.24 B) 36.16 C) 36.24 D) 36.46 E) None
Solution   Correct sum = (36x50+46-23)   = 1823.   âˆ´ Correct mean = 1823 / 50   = 36.46.   Answer 36.46
<result>D</result>
The mean of 50 observations was 36. It was found later that an observation 46 was wrongly taken as 23. The corrected new mean is