Answer:
Step-by-step explanation:
Total voters = 900
Republicians =369
Democrats =468
Independents = 63
Sample size n =90
a) The expected value of the number of Republicans in the sample is
=[tex]\frac{90*369}{900} =36.90[/tex]
b) The chance the sample contains only Republicans and Democrats is
= (no of republicians+democrats)/total people
=[tex]\frac{369+468}{900} =0.93[/tex]
c)