The distance that children at a large school can hop in 15 minutes is normally distributed with
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The distance that children at a large school can hop in 15 minutes is normally distributed with mean 199m and variance 3700m2.
a. Calculate an estimate of b, given that only 25% of the children hopped further than b metres.
b. Find an estimate of the interquartile range of the distances hopped.
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Related Book For
Cambridge International AS & A Level Mathematics Probability & Statistics 1 Coursebook
ISBN: 9781108407304
1st Edition
Authors: Dean Chalmers, Julian Gilbey
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