12. A stationary store has decided to accept a large shipment of ballpoint pens if an inspection of 20 randomly selected pends yields no more than two defective pens.

(a)Find the probability that this shipment is accepted if 5% of the total shipment is defective.

(a)Find the probability that this shipment is not accepted if 15% of the total shipment is defective.

13. According to Harper's Index, 50% of all federal inmates are serving time for drug dealing. A random sample of 16 federal inmates is selected.

(a) What is the probability that 12 or more are serving time for drug dealing?

(b) What is the probability that 7 or fewer are serving time for drug dealing?

Can you kindly aswer these questions as soon as possible i have to submit by sunday 2pm Atlantic time. Thanks