In Hawaii, January is a favorite month for surfing since 60% of the days have a surf of at least 6 feet.† You work day shifts in a Honolulu hospital emergency room. At the beginning of each month you select your days off, and you pick 6 days at random in January to go surfing. Let r be the number of days the surf is at least 6 feet.
A. What is the probability of getting 5 or more days when the surf is at least 6 feet?
B. What is the probability of getting fewer than 2 days when the surf is at least 6 feet?
C. What is the expected number of days when the surf will be at least 6 feet?
D. What is the standard deviation of the r-probability distribution?
