These picks are independent. Picking a male student does not affect the following pick of a female student. Therefore the answer is simply the product of the two probabilities.
153 + 357 = 510 males
male probability = 153/510 = .3
145 + 355 = 500 females
female probability = 145/500 = .29
probability of both happening =.3*.29 = 0.087
At a local college,153 of the male students are smokers and 357 are non-smokers. Of the female students,145 are smokers and are 355 non-smokers. A male student and a female student from the college are randomly selected for a survey. What is the probability that both are smokers?
Do not round your answer.
1 answer
1 answer