Asked by kirsten
x 1 2 3 4 5
P(X=x) 0.1 0.2 a b 0.2
Given that E(X)=3.1, calculate the value of a and b
P(X=x) 0.1 0.2 a b 0.2
Given that E(X)=3.1, calculate the value of a and b
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