The probability that a certain state will be hit by a major tornado (category F4 or F5) in any single year is 15. Complete parts (a) through (d) below.

a. What is the probability that the state will be hit by a major tornado two years in a row?

(Simplify your answer. Round to five decimal places as needed.)

b. What is the probability that the state will be hit by a major tornado in three consecutive years?

(Simplify your answer. Round to five decimal places as needed.)

c. What is the probability that the state will not be hit by a major tornado in the next ten years?

(Round to three decimal places as needed.)

d. What is the probability that the state will be hit by a major tornado at least once in the next ten years?

(Round to three decimal places as needed.)