Out of the total nuts manufactured by a company 0.5 percent became defective. The nuts are supplied in packets of 40. Find out the probability number of packets containing
(a) No defective
(b) One defective
(c) Two defectives
(d) Three defectives
(e) Less than four defectives and
(f) More than four defective nuts respectively in a consignment of 50,000 packets.
Assume Poisson distribution.