A box is filled with 7 brown cards, 3 yellow cards, and 8 red cards. A card is chosen at random from the box. What is the probability that the card is not yellow?

Respuesta :

7 brown, 3 yellow, 8 red...total of 18 cards

there are 15 cards not yellow and a total of 18 cards....so the probability of not picking a yellow card is : 15/18 rounds to 5/6