Question

About 17​% of the population of a large country is allergic to pollen. if two people are randomly​ selected, what is the probability both are allergic to pollen​? what is the probability at least one is allergic to pollen​?

Answer 1

P( both allergic) = 0.17*0.17 =  0.0289

P(at least one is allergic)  = 1 - P(neither are allergic) =  1 - 0.83^2 = 0.311