The mean of 50 observations was 32. It was found later that an observation 48 was wrongly taken as 23. The corrected new mean is	Choose the correct answer:	A) 35.2	B) 32.5	C) 36.5	D) 39.1	E) None
Sol.   Therefore correct sum   = ( 32 × 50 + 48 – 23)   = 1625.   Therefore correct mean   = 1625 / 50   = 32.5.   Answer 32.5
<result>B</result>
The mean of 50 observations was 32. It was found later that an observation 48 was wrongly taken as 23. The corrected new mean is