question archive 1) A survey of radio stations was conducted following the attacks on the World Trade Center in 2001 2001
Subject:StatisticsPrice: Bought3
2001 . One of the variables recorded was the region the station was located in (east, center, or west).
that he/she purchases 0, 1, 2, or 3, are 0.20, 0.45, 0.35, and 0.05 respectively, is this a valid probability distribution?