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12th Class Mathematics Sample Paper Maths Olympiad Model Paper-1

  • question_answer
    In calculating the mean and variance of 10 readings, a student wrongly used the figure 52 for the correct figure of 25. He obtained the mean and variance as 45.0 and 16.0 respectively. Determine the correct mean and variance.

    A)  42.3, 43.81     

    B)  43.81, 42.3

    C)  33.81, 32.3     

    D)  38.3, 43.81

    E)  None of these

    Correct Answer: A

    Solution :

    Not Available    


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