Let A be the rotation matrix defined on p. 98, 0 . Prove that a. _Ax_ = _x_ for all x R2. b. the angle between x and Ax is . These properties characterize a rotation of the plane through angle .

Introductory Statistics Unit One: Descriptive Statistics Descriptive Statistics – tabulate, organize or summarize information about an entire population. Example – A reputable breeder says the average weight of a litter of puppies is 4 pounds. Since the breeder is summarizing information about an entire population, it is a descriptive...