The members of Congress have these religious affiliations: Catholic (156), Jewish (39), Protestant (304), Mormon (15), other (15). There were six members of Congress who did not specify a religious affiliation, and the data are current at the time of this writing.
a. If two different members of Congress are randomly selected, what is the probability that they are both Protestant?
b. If a member of Congress is randomly selected, what is the probability that he or she is Catholic or Protestant?
c. If a member of Congress is randomly selected, what is the probability that he or she is not Mormon?
d. What percentage of members of Congress are Jewish?