If cinderella clothes, inc. has determined that 0.5% of all incoming phone calls involve complaints, what is the probability that in 200 incoming calls there are more than one complaint? --

This is a binomial distribution problem.

Number of trials n=200,
probabiltiy of success p=.5%=.005.

Let X be the random variable than counts the number of complains. In the problem we need to find

P{X > 1}= 1- P{X=0} - P{X=1}.