Question

What is the probability that a state will get hit by a major tornando at least once in the next 10 years if the probability of getting hit in one year is 1/10?

Answer 1

i guess you could say they are independent, so probability of no tornadoes in any one years is

9/10 so no tornadoes 10 years in a row is (9/10)^10 so "at least one" in ten years is 1−(9/10)^10 that might work better