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...


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 1,X2,and X3determine if you win. Xj= 1 if you win, if not 0. show/explain that theese have expectation and variance: (picture)


E(X1) = 0,<br>V(X1) = 0(1 – 0)<br>||<br>|<br>E(X2) = 40,<br>V(X2) = 40(1 – 40)<br>-<br>E(X3) = 50,<br>V(X3) = 50(1 – 50)<br>

Extracted 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)

Jun 05, 2022
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