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- Nov 4th 2008, 07:58 AM #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 ..

- Nov 4th 2008, 08:52 PM #2