9th Class Mathematics Statistics Question Bank Statistics and Probability

  • question_answer
    Distance: Consider the mortality table given below:
    Age (in years) Number of persons surviving out of a sample of one million
    60 17384
    61 12560
    62 9008
    63 5980
    64 4050
    65 2730
    In the given table, probability for an event is \[\mathbf{P=}\frac{\mathbf{14656}}{\mathbf{17384}}\], then P should be the probability that a person

    A) 'aged 60' will die within two years.                       

    B) 'aged 65' will die within a year.

    C) 'aged 62' will die within 3 years.              

    D) 'aged 60' will die within 5 years.

    E) None of these

    Correct Answer: D


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