A die is rolled n times, where n is at least 3.

A bag contains 6 blue marbles and 4 red marbles. Two marbles are selected at random, one after the other (the first marble is not replaced in the bag after it is drawn).

The probability that Maria will eat breakfast on any given day is 0.5. The probability that Maria will wear a sweater on any given day is 0.3. The two probabilities are independent of each other.

A leather pouch contains 10 light bulbs, two of which are defective.

Probability that it will rain during the next week is 0.54, and the probability that there will be a thunderstorm during the next week is 0.68.

When a coin is flipped, the probability of getting heads is 0.5, and the probability of getting tails is 0.5 A coin is flipped 5 times.

0 < x < 100

3<a<b<4

Tom invested part of $8,000 at 3 percent and the rest at 5 percent annual interest for a total return of $340.

Sam invests a principal of $10,000, which earns interest over a period of years.