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)
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