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 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.

Lisa and Fred were flipping a quarter and recording whether it was heads or tails. What is the probability they flip a quarter and it lands on heads, heads, tails, heads, tails? (H,H,T,H,T)

In a bag of marbles, there are blue marbles, red marbles, and green marbles. What is the probability of drawing two blue marbles in a row?

The red jacks are removed from a standard deck of fifty-two cards. What is the probability that a card randomly drawn from that modified deck will be black?

A large box contains some balls, each of which is marked with a letter of the alphabet. Each vowel is represented by three balls, one red and two blue; each consonant is represented by one ball, which is red. Give the probability that a randomly drawn ball will be blue.

Note: For purposes of this question, "Y" is considered a consonant.

All of the clubs are removed from a standard fifty-two-card deck. Two cards are then dealt without replacement. What is the probability that both cards will be red?