One card is selected at random from each of 40 packs. Each pack contains 52 cards and
Question:
One card is selected at random from each of 40 packs. Each pack contains 52 cards and includes 13 clubs. Let C be the number of clubs selected from the 40 packs.
a. Show that the variance of C is 7.5.
b. Obtain an approximation for the value of P(C ≤ 8), and justify the use of this approximation.
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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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