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KVPY Sample Paper KVPY Stream-SX Model Paper-27

  • question_answer
    The mean of 20 observations is 15. On checking it was found that the two observations were wrongly copied as 3 & 6. The correct values are 8 and 4, then correct mean will be given by:

    A) 15.15

    B) 14.69

    C) 14.74

    D) 15.25

    Correct Answer: A

    Solution :

    Correct mean\[=\frac{300-(3+6)+(8+4)}{20}=15.15\]


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