Dave has a sock drawer with 8 blue and 10 black socks.

If Dave pulls out one black sock, what is the probability that the next sock he pulls out of the drawer is also black?

Dave has a sock drawer with 8 blue and 10 black socks.

If Dave pulls out one black sock, what is the probability that the next sock he pulls out of the drawer is also black?

A pair of fair dice are rolled. What is the probability that the sum will be a multiple of 4?

A pair of fair dice are rolled. What is the probability that the sum will be a multiple of 4?

If Mark flips a coin and then rolls a die, what are the odds that the coin will be heads and that the die will land on a multiple of 3?

A pair of fair dice are rolled. What is the probability that the sum will be a multiple of 3?

A pair of fair dice are rolled. What is the probability that the sum will be a multiple of 3?

If Mark flips a coin and then rolls a die, what are the odds that the coin will be heads and that the die will land on a multiple of 3?

A large box contains some balls, each of which is marked with a number; one ball is marked with a "1", two balls are marked with a "2". and so forth up to ten balls with a "10". A blank ball is also included.

Give the probability that a ball drawn at random will NOT be an odd-numbered ball.

A large box contains some balls, each of which is marked with a number; one ball is marked with a "1", two balls are marked with a "2". and so forth up to ten balls with a "10". A blank ball is also included.

Give the probability that a ball drawn at random will NOT be an odd-numbered ball.