Question

find the correct mean​

Answer 1

Step-by-step explanation:

151Q:

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 :

A) 35

B) 36.5

C) 40

D) 42

Answer: B) 36.5

Explanation:

Correct Sum = (36 * 50 + 48 - 23) = 1825.

Correct mean = = 1825/50 = 36.5

Subject: Average - Quantitative Aptitude - Arithmetic Ability

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