I don't have right answers for the problems below, so I would really appreciate if someone could check my answers. I'm not sure if any of this is right.
1. We have 25 products, 5 of which are bad. What is the probability of
a) choosing one bad product?
b) choosing (any) five products?
c) choosing five products with exactly two bad products?
(Products are chosen randomly.)
2. We have 8 products, 3 of which are bad. What is the probability of choosing either BGG or GBG (B - bad product, G - good product)?
3. We have 7 good and 4 bad products. What is the probability of
a) choosing three good products?
b) choosing exactly two good products and one bad product?
c) choosing three products with at least one bad product?