Drawing legislative district boundaries has always been controversial, in large part because redistricting decisions are made by partisan majorities in legislatures

An experimenter hopes to find that the predicted variation

A) leads to accepting the null hypothesis. B) reduces the difference between-groups. C) increases the within-groups variation. D) is due to the experimental manipulation.

The 2009 Copenhagen summit was designed to revamp and update the ______ written a dozen years before.

a. peace accord b. global warming act c. Kyoto Protocol d. Land Use Act