Mathematics, 10.03.2020 02:43 marioagundis09

Before electronics took over, slot machines worked like this. You pull the lever to spin three wheels. Each wheel has 20 symbols, all equally likely to show when the wheel stops spinning, and the three wheels are independent of each other. Suppose that the middle wheel has 9 cherries among its 20 symbols, and the left and right wheels have 1 cherry each. You win the jackpot if all three wheels show cherries. What is the probability of winning the jackpot

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