An advertising agency is hired to introduce a new product. The agency finds that after its campaign 66% of all consumers are familiar with the product. We ask 10 randomly selected customers whether or not they are familiar with the product. (a) Is this a binomial experiment? Explain how you know. (b) Use the correct formula to find the probability that, out of 10 customers, exactly 5 are familiar with the product. Show your calculations or explain how you found the probability.