The probability of Team X beating Team Y is . The probability of Team X beating Team Z is . Team X plays one game with Team Y and one game with Team Z.

A box contains white marbles and black marbles, all identical except for color. If one marble is drawn at random, the probability that it is a white marble is . Six white marbles are added to the box, but no black marbles are added. Now, if one marble is drawn at random, the probability that it is a white marble is .

Scores for graduates on a university exit exam are normally distributed with a mean of 75 and standard deviation of 10.

The probability that Gary will eat eggs for breakfast on any given day is . The probability that Gary will eat cereal for breakfast on any given day is . Gary never has both eggs and cereal for breakfast on the same day.

The probability of rain in Greg’s town on Tuesday is 0.3. The probability that Greg’s teacher will give him a pop quiz on Tuesday is 0.2. The events occur independently of each other.

Colored marbles are drawn at random from a bag without replacing any. In the bag are four clear marbles and seven black marbles.

In a box of 5 eggs, 2 are rotten

A card is drawn from a standard deck of 52 cards.

An integer is randomly selected from the integers from 200 to 900 inclusive.

A coin is tossed 3 times.