A committee of three people is to be randomly selected from a group containing four Republicans, three Democrats, and two independents. Let Y1 and Y2 denote numbers of Republicans and Democrats, respectively, on the committee. a What is the joint probability distribution for Y1 and Y2? b Find the marginal distributions of Y1 and Y2. c Find P(Y1 = 1|Y2 1).

Lecture3-SamplingBasics Tuesday,August23,2:00PM • ○ ^Reviewfromthepreviouslecture • Population andSample ○ Population- everybodythattheresearchistargeting § Populationresultsarecalled populationparameters ○ Sample- thesubsetofthepopulationthatactuallyparticipatesintheresearch § Makesdatacollectionmanageable...