SOLUTION: A shipment of 10 television sets contains 3 defective sets. How many ways can a hospital purchase 4 of these sets and receive at least 2 of the defective sets?

Algebra ->  Probability-and-statistics -> SOLUTION: A shipment of 10 television sets contains 3 defective sets. How many ways can a hospital purchase 4 of these sets and receive at least 2 of the defective sets?      Log On


   

Question 454589: A shipment of 10 television sets contains 3 defective sets. How many ways can a hospital purchase 4 of these sets and receive at least 2 of the defective sets?
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
3 defective and 7 ok
(3C3 * 7C1) + (3C2 * 7C2)
=7+63
=70 ways
.
Ed