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  1. #1
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    help

    The heights of a group of form 5 students are normally distributed with a mean of 180 cm and a standard deviation of 10 cm . Given that 50 % of the students have heights between A cm and B cm , find the value of A and of B such that the values between A and B are as close as possible .


    THanks for any help ..
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  2. #2
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    Quote Originally Posted by mathaddict View Post
    The heights of a group of form 5 students are normally distributed with a mean of 180 cm and a standard deviation of 10 cm . Given that 50 % of the students have heights between A cm and B cm , find the value of A and of B such that the values between A and B are as close as possible .


    THanks for any help ..
    Pr(X < A) = Pr(X > B) = 0.25.
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