suppose you have a drawer full of white, black and yellow pairs of socks. If the probability of picking a white pair of socks is 4/9 and the probability of picking a black pair of socks is 7/18 what is the probability of picking a yellow pear of socks?

Answer 1

Since there are only three colors of socks, the sum of the probabilities of picking a white, black, or yellow pair of socks is equal to 1. Therefore, we can find the probability of picking a yellow pair of socks by subtracting the sum of the probabilities of picking a white or black pair of socks from 1:

1 - (4/9 + 7/18) = 1 - 8/18 = 10/18 = 5/9

So the probability of picking a yellow pair of socks is 5/9.