10.1 Suppose the fractions of “yes” votes and “no” votes on a congressional bill are recorded for every bill voted upon in a particular session of the United States Congress. It is of interest to see whether there are underlying constructs such as an agricultural bloc, or a civil rights bloc, or a liberal way of voting, and so on, which can account for the observed variation in the data in a simple way. Select a multivariate model you feel would be most appropriate for studying this problem, and formulate the model in the context of this problem stating the underlying assumptions of the model selected.