Q21. If 1% of the electric bulbs manufactured by a company are defective, find the probability that in a sample of 100 bulbs, the number of defective bulbs will be 0, 1, 2, 3, 4, 5 respectively. Use recurrence relation of Poisson distribution. Also find the probability that (1) 3 or more (ii) between 1 and 3, and (iii) less than or equal to 2 bulbs will be defective.

Solution