Need to develop a contingency table (often used for calculating probabilities when the focus is on conditional probability).
The nurse is either M or F.
The nurse either has a BS degree or does not.
Since there are 125 female nurses, and 56 of those held bachelors degrees, that leaves (125-56), or 69, who did not hold bachelors degrees. Complete this table. I found that there are 75 male nurses and 125 female nurses. Note that 75 and 125 add up to 200 (which is the given number of nurses).
