A Wheel Is Divided

1.a  wheel is divided into 50 even segments, 4 segments are blue, 1 is red and the rest white. On a $ bet, the game pays $10 for landing on red, $20 for landing on blue and nothing for everything else. What is the expected value of this game?


2.a basket holds 100 balls, 80 white, 15 black and 5 red. You win $100 if you pull a white ball and a red ball will get you $20, otherwise you lose your $10 bet. what is the expected value of this game?


Powerball lottery is made up of selecting 4 balls numbered 1-30 and a kicker ball numbered 1-10, assuming there is only way to win, what is the probability of winning this lottery?


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