Each of four friends orders a sweatshirt from a catalog. There are 16 colors of sweatshirts, 7 of which are all cotton and 9 of which are a blend. Each one orders a different color (no repeats) at random. What is the probability that the friends order only cotton sweatshirts?

Question

anonymous · Answer

need help please..

anonymous · Answer

I think these are independent selections without replacement, so we can multiply the probabilities as they start choosing

(7/16) (6/15) (5/14) (4/13)=joint probability all four get cotton at random.

anonymous · Answer

neither of those are my choices..

anonymous · Answer

please i need help on this problem

anonymous · Answer

What are your choices? My answer above comes to 1.9%.