9. A gambler plays roulette conservatively: she bets on black every time, which gives her probabil-...
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5. What is the probability that the sum of the numbers on two dice is even when they are rolled? 6. What is the probability that a card selected at random from a standard deck of 52 cards is an ace or a heart? What is the probability that a positive integer not exceed- 100 selected at random is divisible by 5 or 7? nd the probability of winning a lottery by selecting the t...