Eight cards are marked 3, 4, 5, 6, 7, 8, 9, and 10 such that each card has exactly one of these numbers. A card is picked without looking. Find each probability. Write each answer as a fraction, a decimal, and a percent. a) P(not 5 and not 10)

1 answer

There are 6 cards which are not 5 and not 10.
So, P = 6/8