A box contains 20 chocolates, of which 15 have soft centres and five have hard centres. Two
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A box contains 20 chocolates, of which 15 have soft centres and five have hard centres. Two chocolates are taken at random, one after the other. Calculate the probability that
(a) both chocolates have soft centres,
(b) one of each sort of chocolate is taken,
(c) both chocolates have hard centres, given that the second chocolate has a hard centre. (C)
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Related Book For
A Concise Course In Advanced Level Statistics With Worked Examples
ISBN: 9780748754755
4th Edition
Authors: J. Crawshaw, J. Chambers
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