You are dealt one card from a 52-card deck. Find the probability that you are not dealt a card with number from 3 to 9.
There are 4 cards with numbers from 3 to 9 in each suit (3, 4, 5, 6, 7, 8, and 9), so there are 4 × 7 = 28 possible cards with numbers from 3 to 9.
There are 52 cards in a deck, so the probability of not getting a card with a number from 3 to 9 is (52 - 28) / 52 = 24 / 52 = 12 / 26 = 6 / 13.
Therefore, the probability of not getting a card with a number from 3 to 9 is 6/13.