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a group of people are having a charity fair by having a lottery. Every participant can win in three idependent rounds. The chance og winning in every round are different. the probability to win in round 1 is θ, round 2: 4θ, and round 3: 5θ. θ

a group of people are having a charity fair by having a lottery. Every participant can win in three idependent rounds. The chance og winning in every round are different. the probability to win in round 1 is θ, round 2: 4θ, and round 3: 5θ. θ

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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a group of people are having a charity fair by having a lottery. Every participant can win in three idependent rounds. The chance og winning in every round are different. the probability to win in round 1 is θ, round 2: 4θ, and round 3: 5θ. θ <max(1/4, 1/5). in round 2 and three does every participant have the chance to win regardless of prevoius wins. X1, X2, and X3 determine if you win. Xj = 1 if you win, if not 0. show/explain that theese have expectation and variance: (picture) 

E(X1) = 0, V(X1) = 0(1 – 0) || | E(X2) = 40, V(X2) = 40(1 – 40) - E(X3) = 50, V(X3) = 50(1 – 50)
Transcribed Image Text:E(X1) = 0, V(X1) = 0(1 – 0) || | E(X2) = 40, V(X2) = 40(1 – 40) - E(X3) = 50, V(X3) = 50(1 – 50)
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