SOLUTION: A box is filled with 5 red cards, 6 yellow cards, and 7 blue cards. A card is chosen at random from the box. What is the probability that the card is not yellow? Write your answe

Algebra ->  Probability-and-statistics -> SOLUTION: A box is filled with 5 red cards, 6 yellow cards, and 7 blue cards. A card is chosen at random from the box. What is the probability that the card is not yellow? Write your answe      Log On


   

Question 741644: A box is filled with 5 red cards, 6 yellow cards, and 7 blue cards. A card is chosen at random from the box. What is the probability that the card is not yellow? Write your answer as a fraction in simplest form.
Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
Probability of a NON-yellow card = %28number+of+NON+yellow%29%2F%28total+number%29,

where NON-yellow = 5+7=12
Total = 5+6+7 = 18

Probability+=+%285%2B7%29%2F18+=+12%2F18+=+2%2F3.

Dr. Robert J. Rapalje, Retired
Seminole State College of Florida