The heights of NCAA Division I men's basketball players are normally distributed, with an average height of 6 feet 4.7 inches and a standard deviation of 3.37 inches. Of the events: 1) randomly selecting one player taller than 6 feet 11 inches (probability of 0.031), 2) randomly selecting four players with a mean height over 6 feet 9 inches (probability of 0.005), or 3) randomly selecting nine players (no probability given), the most likely to occur is event 1, while the least likely is event 2.