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In how many ways can 5 ice cream toppings be chosen from 12 available toppings?

If the odds for A are 4 to 2, what is the probability of A?

3 cards are drawn simultaneously at random from a standard deck. Find the probability that all the cards are hearts.

Factories A and B produce computers. Factory A produces 3 times as many computers as factory B. The probability that an item produced by factory A is defective is 0.037 and the probability that an item produced by factory B is defective is 0.05. A compute...