A chef wishes to decorate each of four cupcakes with one randomly selected sweet. They choose the
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A chef wishes to decorate each of four cupcakes with one randomly selected sweet. They choose the sweets at random from eight toffees, three chocolates and one jelly. Find the variance of the number of cupcakes that will be decorated with a chocolate sweet.
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Let the number of cakes decorated with chocolate sweet be X PX 0 3 C 0 9 C 4 12 C 4 126 495 PX ...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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