In a town, the brand name of a certain chain of coffee shops has a 60% recognition rate. (In other words, a this town resident selected at random knows about the chain with a probability of 0.6.) An executive from the company wants to verify the recognition rate as the company is interested in opening a coffee shop in the town. He/she selects a random sample of 5 residents. Let X be the number of people (out of five above) who will recognize the chain. b) Find the mean and standard deviation of X. 3.1, 2.5 3.1 approx. 1.1 3, approx. 1.11 3, approx. 5