Mat

7.
you draw two cards at random from a standard deck. what is the probability of drawing at least one diamond?

15 34

9 16

3 4

19 34

8.
a street magician asks a passerby to draw one card from a standard deck, remember it, and then replace it. the magician then shuffles the deck and asks the person to draw a second card. find the probability that at least one of the two cards was a heart.

1 4

7 16

9 16

3 4