please address part (D) WHAT IS E(Y) AND V(Y)  It is a negative binomial if that help

Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter2: The Integers
Section2.7: Introduction To Coding Theory (optional)
Problem 7E
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please address part (D) WHAT IS E(Y) AND V(Y) 

It is a negative binomial if that help 

Con sider an experiment Consisting ef
independent rolls of a fair die, let
W record the number of times that 3 occurs
in the first 360 rolls . Let X record the
First time that 3 appears, and let
y record the fourth time that 3 ocurs.
) For each og W, X and Y Say if the freguemey
function of that rondom variable is (A)
binomial, (B) negative binomied G) geometric or
bone o the above.
sWhat is E(W)? what is V(W) ?
3) What is E(X)? What is V(X) ?
) What is ETY)? What is VCy)?
Transcribed Image Text:Con sider an experiment Consisting ef independent rolls of a fair die, let W record the number of times that 3 occurs in the first 360 rolls . Let X record the First time that 3 appears, and let y record the fourth time that 3 ocurs. ) For each og W, X and Y Say if the freguemey function of that rondom variable is (A) binomial, (B) negative binomied G) geometric or bone o the above. sWhat is E(W)? what is V(W) ? 3) What is E(X)? What is V(X) ? ) What is ETY)? What is VCy)?
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