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11th Class Mathematics Sample Paper Mathematics Olympiad - Sample Paper-9

  • question_answer
    If the standard deviation of a variable x is \[\sigma \], then the standard deviation of another variable \[\frac{ax+b}{c}\]is

    A)  \[\frac{\sigma a+b}{c}\]           

    B)  \[\left| \frac{a}{c} \right|\sigma \]         

    C)  \[\sigma \]                    

    D)  None of these

    Correct Answer: B

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