Homework Answers
Given that,
P(Obama|No college degree) = 52/100 * 60/100= 0.312 & P(Romney|No colllege degree) = 45/100 * 60/100 = 0.270
P(Obama|College degree) = 47/100 * 40/100= 0.188 & P(Romney|College degree) = 51/100 * 40/100= 0.204
If a voter select randomly. then if he may from college degree or No college degree.
So, P(Obama)= P(Obama|No college degree) + P(Obama|College degree) = 0.312+0.188= 0.5
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