Background data: "Only 25% of people prefer my pizza!?" Clark exclaims in disbelief. Livid once again, he vows to fight Lex with data. He hatches a plan to assemble his own focus group for a blind taste test.

Question: Suppose it were true that the population proportion of people who prefer Clark's pizza is only 25%. In a focus group of 10 people, what is the probability that the number of people who prefer Clark's pizza is at least 3 and no more than 5?

Please answer the questions using excel functions. Please show the excel formulas and calculations in getting the answer.