A player has a probability of winning a competition of 0.2 because there are 4 equally good contenders in each competition. How many competitions is he expected to enter before winning at least two competitions?
Added by Fernando H.
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To do this, we can calculate the probability of not winning any competitions and subtract it from 1. The probability of not winning any competitions is (1 - 0.2) = 0.8. So, the probability of winning at least two competitions is 1 - 0.8 = 0.2. Now, let's Show more…
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