At a local college, 305 of the male students are smokers and 305 are non-smokers. Of the female students, 250 are smokers and 250 are 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 non-smokers?
Do not round your answer.

For which of the following counts would a binomial probability model not be reasonable? a)the number of people in a classroom born in januaryb) the number of people in a classroom with red hair c) the number of people admitted to a hospital in a day with a particular disease d) the number of heart beats in a one-minute perio.

Afarm that has 4 x 10^2 acres has 1.2 x 10^5 cattle. what is the average number of cattle per acre? write the answer in scientific notation. answere asap

If w = 6 units, x = 3 units, and y = 5 units, what is the surface area of the figure? 168 units2 240 units2 144 units2 96 units2