Please help.

3. (6 point) A company sells five types of wheelchairs, with type A being 20% of the sales, type B being 30% of the sales, type C being 50% of the sales. In addition,19% of the type A wheelchair sales are motorized, 50% of the type B wheelchair sales are motorized, 4% of the type C wheelchair sales are motorized. If a motorized wheelchair is sold, what is the probability that it is of type C? theaste 4. (8points) A company that produces fine crystal knows from experience that 10% of its goblets have cosmetic flaw and must be classified as "seconds". (a) (4 points) Among six randomly selected goblets, how likely is it that exactly one is a second? [b) (4 points) Among six randomly selected goblets, what is the probability that at least two are seconds?\f