Reference no: EM132856966

1. What is the probability that a sum of 8 will occur on the fifth trial if a pair of dice is rolled?

2. Two coins are continuously tossed until all tails appear. Determine the probability that two tails will show in at most 4 trials.

3. Determine the probability of getting two spades if 8 cards are dealt from a standard deck of 52 cards.

4. Fifteen cards--5 red, 3 green, and 7 white-are put in a box. Seven cards will be drawn at random from the box. Find the probability that 5 of these are white cards.

5. A police station receives an average of 9 calls per hour. What is the protability that exacty 5 calls will loe received by the police station in a randomly selected hour?