What is the probability of tossing at least three heads if a fair coinis tossed four times

48. of the 15 teams in the National Hockey League NHL eastern conference, three of them are based in Canadian cities. Each year eight of these teams qualify for the playoffs assuming that all 15 teams have an equal chance of getting into the playoffs what is the probability that

A ) none of the Canadian teams make the playoffs

B) at least one of the Canadian teams make the playoffs

C) all three Canadian teams make the playoffs

49. For each of the following states whether or not the events are mutually exclusive and determine the probability of the event occurring be sure to apply the notation used in this unit and your solution.

A ) Rolling a one or an even number with a single six-sided die

B) drawing a 10 or a red card from a standard deck of cards

50. Eight cards, numbers 4 to 11, are placed in a hat and two of the cards are drawn at random.

A)What is the probability that the sum of the numbers will be equal to 10

B) what is the probability that the sum of the numbers will be greater than 14

C)

Are these two events mutually exclusive of each other