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SSC Sample Paper Mock Test-12 SSC CGL Tear-II Paper-1

  • question_answer
    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) 35.2     

    B)  36.1     

    C)  36.5    

    D)  39.1

    Correct Answer: C

    Solution :

    The sum of 50 observations \[=50\times 36=1800\] \[\therefore \]The correct mean \[=\frac{1800-23+48}{50}=\frac{1825}{50}=36.5\]


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