A discrete random variable, X, has the probability generating function: G x (r) = 3/10 - 7t
Question:
A discrete random variable, X, has the probability generating function:
Gx(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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a The probability generating function for Y 3X 4 is GYr 310 7t3 4310 7t2 12310 7t b E...View the full answer
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Related Book For
Cambridge International AS & A Level Further Mathematics Coursebook
ISBN: 9781108403375
1st Edition
Authors: Lee Mckelvey, Martin Crozier
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