The following table shows a breakdown of the 117th U.S. Congress by party affiliation. (There are two independent senators included in the count of Democratic senators. There are two vacant House seats.)

a. A member of Congress is selected at random. What is the probability of selecting a Republican?

b. Given that the person selected is a member of the House of Representatives, what is the probability this person is a Republican?c. What is the probability of selecting a member of the House of Representatives or a Democrat?

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House Senate Total Dem 221 50 271 Reb 213 48 261 Party Ind 0 N|N 2 2 Vacant 1 0 1 Total 435 100 535