I had to calculate the probabilities below. I am including the answer. Just need to make sure I am correct. Thanks!

Probability of rolling an 8 on a single roll of two dice. 5/36

Probability of rolling a 5 on a single roll of two dice. 4/36

Probability of getting 3 heads on 3 flips of a coin. 1/8

Probability of getting 2 tails in 4 flips of a coin. 6/16

Probability of drawing a 4, club, or spade from a 52 card deck. 28/52