During a sale, a boy bought six pairs of jeans, each with leg length xcm. He also
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During a sale, a boy bought six pairs of jeans, each with leg length xcm. He also bought four pairs of pants, each with leg length (x – 2)cm. The boy is quite short, so his father removed 4cm from the length of each trouser leg. Find the variance of the leg lengths after his father made the alterations.
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The variance of a set of measurements is the average of the squar...View the full answer
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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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