The U.S. Congress, Joint Committee on Printing, provides information on the composition of Congress in Congressional Directory.

Question:

The U.S. Congress, Joint Committee on Printing, provides information on the composition of Congress in Congressional Directory. On the WeissStats CD, we present data on party and class for the senators in the 111th Congress.
a. Group the bivariate data for these two variables into a contingency table.
b. Determine the conditional of party within each class and the marginal of party.
c. Determine the conditional of class within each party and the marginal of class.
d. Are the variables "party" and "class" for U.S. senators in the 111th Congress associated? Explain your answer. Distribution
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