If the office visits of a detail rep are Bernoulli trials, then which of these two sequences of six office visits is more likely (S stands for success and the rep sees the doctor, and F for failure):...

If the office visits of a detail rep are Bernoulli trials, then which of these two sequences of six office visits is more likely (S stands for success and the rep sees the doctor, and F for failure): SSSFFF or SFFSFS?

Four customers in a taste test sample two types of beverage (called A and B here) and are asked which is preferred. If customers cannot tell the two beverages apart, are we more likely to see the response AABB or AAAA?