The following table(which is the attached file) shows a break down of the 113th U.S Congress by

The following table(which is the attached file) shows a break down of the 113th U.S Congress by party affiliation.

Question 1: A member of congress is selected at random. what is the probability of selecting a republican?

Question 2: Given that the person selected is a member of the house of representatives, what is the probability he or she is a republican?

Question 3: What is the probability of selecting a member of het house of representatives or a democrat?