A survey of undergraduate students in the School of Business at Northern University revealed
the following regarding the gender and majors of the students:
a. What is the probability of selecting a female student?
b. What is the probability of selecting a finance or accounting major?
c. What is the probability of selecting a female or an accounting major? Which rule of addition
did you apply?
d. Are gender and major independent? Why?
e. What is the probability of selecting an accounting major, given that the person selected
is a male?
f. Suppose two students are selected randomly to attend a lunch with the president of the
university. What is the probability that both of those selected are accounting majors?

I just do not know how to get the right formulas? If I could get the formula, I might be able to calculate the answer on my own. Please help! :confused: