Question

If 55% of the people at a certain conference are doctors, 49% are women, and 29% are female doctors, what is the probability that a person selected at random at this conference is a doctor or woman (or both)?

Answer 1

$doctors = 55\% \\ woman = 49\% \\ both = 29\%$

$p(a) =0.55 + 0.49 - 0.29 \\ p(a) = 0.75$