Do the following problems using the conditional probability

Do the following problems using the conditional probability

Subject: Mathematics    / Statistics
Question

Do the following problems using the conditional probability formula:
P ( A|B )= P ( A ? B)
P ( A ? B)
P ( B| A )=
P( B)
P( A) At De Anza College, 20% of the students take Finite Math, 30% take History, and 5% take both Finite Math and History. If a student is chosen at random, find the following conditional probabilities.
a. Student is taking Finite Math given that said student is taking History.
b. Srudent is taking History given that said student is taking Finite Math.