Answers
a)P(R)=0.78
b)P(R')=1-0.78=0.22
c)P(A|R)=0.39
d)P(A'|R)=1-0.39=0.61
e)P(A|R')=0.1
f)P(A'|R')=1-0.1=0.9
b)
probability=P(R')*P(A|R')=0.22*0.1=0.022
c)
P(A)=P(R)*P(A|R)+P(R')*P(A|R')=0.78*0.39+0.22*0.1=0.326
d)
P(R|A)=P(R)*P(A|R)/P(A)=0.78*0.39/0.3262 =0.933
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