Answer:
Both = 0.3025 or 30.25%
At least one = 0.7975 or 79.75%
Step-by-step explanation:
The probability that one of the two is allergic to pollen is 55% so the probability that both are allergic is given by:
[tex]P_{both} = 0.55^{2} = 0.3025\\[/tex]
The probability of at least one of them being allergic can be given by the whole minus the probability of neither being allergic:
[tex]P_{1} = 1 - (1- 0.55)^{2} = 0.7975\\[/tex]
