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JEE Main & Advanced Mathematics Statistics Question Bank Numerical Value Type Questions - Statistics

  • question_answer
    If mean and standard deviation of 5 observations \[{{x}_{1}},{{x}_{2}},{{x}_{3}},{{x}_{4}},{{x}_{5}}\] are 10 and 3, respectively, then the variance of 6 observations \[{{x}_{1}},{{x}_{2}},.....,{{x}_{5}}\] and \[-50\] is equal to

    Answer:

    507.5


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