When you sign your credit card subscription contract, do you read it carefully? For me, the answer is no. During an investigation, the following question was asked: "How carefully do you read a (credit card) subscription contract? The results showed that 44% read each word of the contract, 33% read it carefully enough to understand it, 11% just took a look at it and 4% did not read it at all. (Note - this is the normal approximation of binomial probabilities. That is, the base variable is distributed according to the binomial law. See section 6.3.) A) in a sample of 500 people, how many people on average would say that they read each word of the contract? B) in a sample of 500 people, what is the probability that at most 200 people will say they read each word of the contract? C) in a sample of 500 people, what is the probability that no more than 200 people say they do not read the contract