A discrete random variable, X, has the probability generating function: G x (r) = 3/10 - 7t

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A discrete random variable, X, has the probability generating function:

G_x(r) = 3/10 - 7t

a. Find the probability generating function for Y = 3X + 4.

b. Show that E(Y) = 11.

c. Find P(Y = k) for k = 4, 7, 10.

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Cambridge International AS & A Level Further Mathematics Coursebook

ISBN: 9781108403375

1st Edition

Authors: Lee Mckelvey, Martin Crozier

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Question Posted: Oct 06, 2021 12:46 AM

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A discrete random variable, X, has the probability generating function: G x (r) = 3/10 - 7t

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a The probability generating function for Y 3X 4 is GYr 310 7t3 4310 7t2 12310 7t b E...View the full answer

Cambridge International AS & A Level Further Mathematics Coursebook

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