For each of the following, state whether the events created are mutually exclusive and whether they are collectively exhaustive.

a. undergraduate business students were asked whether they were sophomores or juniors.
b. each respondent was classified by the type of car he or she drives: sedan, suv, american, european, asian, or none.
c. people were asked, "do you currently live in (i) an apartment or (ii) a house? "
d. a product was classified as defective or not defective

8. agreement and disagreement among economists suppose that bob, an economist from a university in arizona, and cho, an economist from a public television program, are arguing over saving incentives. the following dialogue shows an excerpt from their debate: cho: i think it's safe to say that, in general, the savings rate of households in today's economy is much lower than it really needs to be to sustain an improvement in living standards. bob: i think a switch from the income tax to a consumption tax would bring growth in living standards. cho: you really think households would change their saving behavior enough in response to this to make a difference? because i don't. the disagreement between these economists is most likely due to . despite their differences, with which proposition are two economists chosen at random most likely to agree? rent ceilings reduce the quantity and quality of available housing. immigrants receive more in government benefits than they contribute in taxes. having a single income tax rate would improve economic performance.

Select all that apply. select the ways that labor unions can increase wages. collective bargaining reducing the labor supply increasing the demand for labor creating monopolies

How do communism and socialism differ in terms of the role that government plays in the economy ?