a What is the probability that two randomly selected females

a. What is the probability that two randomly selected females over the age of 24 are both college graduates?

b. What is the probability that two randomly selected people over the age of 24 are both women?

c. Suppose four people over the age of 24 are randomly selected, what is the probability that at least one will be a college graduate?

d. Suppose three people over the age of 24 are randomly selected, what is the probability that at least one will not complete high school?