Apublic opinion poll was administered to 50 people before the election of president barack obama. polls taken before election night showed 50% of the people polled believed barack obama would be elected president. after the election results, the same people were asked if they believed barack obama would be elected president, and this time 75% of the people said yes. this may be an example of bias.

In the kingdom of saudi arabia the government controls every aspect of oil production which makes up the majority of the country's economy. while other businesses are owned by individuals, the biggest segment of saudi arabia's economy is oil production. saudi arabia's economy would best be described as a) entirely market. b) almost entirely command. c) a mixture between just market and traditional. d) a mixed economy with large amounts of command.