The mean of 50 observations was 36. It was found later that an observation 34 was wrongly taken as 23. The corrected new mean is :	Choose one:
A) 36.0  B) 36.5  C) 36.24  D) 36.12  E) 36.22

Rationale: "explanation : correct sum = ( 36 * 50 + 434 - 23 ) = 1825 . correct mean = = 1811 / 50 = 36.5 answer : e ) 36.22"
Answer: E