random u E is, let
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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Transcribed Image Text:Con sider a fandom walk on the
Integers. That is, let there be a
Player A who wins $1 each time a
Vandom Coin Comes up head and loses
$1 each time it Comes up tail, A
Starts with o dlollers. Assume that the
Coin tosses arre in depen dent and that each
timi head Occurs with Pro bability P,
with Y2 <P< 1. Consider the following
random Variables :

Transcribed Image Text:Wa is the nember of steps until A has $1.for
time.
We is the neumber of Steps until A bes $2 for the
first time.
Wg is the nember of steps Until A has $ 3 for
the fint timt.
Xx = Wy-Wt
Xg= Wg -Wz
Since
Prob(U,{W = i}) =1 we reatriet the
Sample space to Consist of finite Seguence of
Coin tosses, Assume that the Sample Space Consists
g this Countably finite set.
A) Which three of these Pamdom Variablos are lutully Indygandat
BFO each Pair of Random Variables that are
not indepen dent, Show that they are ust Indepentent
C) Give the expected Value of each of these romdom
Varlables ·
DLWas it important for your answer that
½ ?p<1? what thappem if P=I?
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