SOLUTION: I cannot figure out this question, please help About 13% of the population is math phobic, if two people are randomly selected, what is the probability at least one is math phob

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Question 470709: I cannot figure out this question, please help
About 13% of the population is math phobic, if two people are randomly selected, what is the probability at least one is math phobic?
a)the probability that both will be math phobic=
round to four decimal places as needed
b)the probability that at least one person is math phobic is=
round to four decimal places as needed.
Thank you
Answer by sudhanshu_kmr(1152) (Show Source):
You can put this solution on YOUR website!

probability that a person is math phobic = 13% = 13/100
a) the probability that both will be math phobic P(A)
= 13/100 * 13/100
= 169/10000
= 0.0169

b) the probability that both are not math phobic P(B) = 87/100 * 87/100
= 0.7569
the probability that at least one person is math phobic i,e P'(B) = 1 - P(B)
= 1 - 0.7569
= 0.2431