9. We have been using the normal distribution to approximate situations that are in fact binomial events

a)Demonstrate how accurate the approximation is by using both approaches to find the probability of the same event

b) Describe the conditions under which the normal would give a less accurate approximation.

c) Explain a situation in which the criteria for using the approximation would be met, ie.np 5 andn(1 p) 5, and yet you would decide not to use the normal distribution.