A coin is tossed repeatedly, and heads turns up with probability p on each toss. Let hn be the probability of an even number of heads in the first n tosses, with the convention that 0 is an even number. Find a difference equation for the hn and deduce that they have generating function + (1 −s)-¹}. {(1+2ps-s)¹

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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A coin is tossed repeatedly, and heads turns up with probability p on each toss. Let hn be
the probability of an even number of heads in the first n tosses, with the convention that 0 is an
even number. Find a difference equation for the hn and deduce that they have generating function
{(1+2ps -s)¹ + (1 − s)−¹}.
Transcribed Image Text:A coin is tossed repeatedly, and heads turns up with probability p on each toss. Let hn be the probability of an even number of heads in the first n tosses, with the convention that 0 is an even number. Find a difference equation for the hn and deduce that they have generating function {(1+2ps -s)¹ + (1 − s)−¹}.
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