- A very large company has twice as many male employees relative to female employees. If a random sample of four employees is selected, what is the probability that all four employees selected are female? A. 0.3333. B. 0.0625. C. 0.0123. Amswer C: Since there are twice as many male employees to female employees, P(male) = 2/3 and P(female) = 1/3. Therefore, the probability of 4 successes = (0.333)^4 = 0.0123.

This iw what I thought.

If you select one female, now there is one female employee less. I assumed 10 females and 20 males

shouldn’t the probability be like below?

10/20 * 9/19 * 8/18 * 7/17 ???

thanks