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probability random variables
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Let X∈{0,1} and Y∈{0,1} be two random variables if P(X=0) =p and P(Y=0)=q then P(X+Y>=1) is equal to
1)pq+(1p)(1q)
2)pq
3)p(1q)
4)1pq
probability
randomvariable
easy
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Dec 16, 2015
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Probability
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Pooja Palod
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Best answer
X∈{0,1} Y∈{0,1}
i.e. for
P(X+Y>=1) value of X and Y can be {(0,1),(1,0),(1,1)}
So we can say , P(X+Y>=1) = 1P(X+Y<1)
= 1 P(X=0,Y=0)
=1 {P(X=0).P(Y=0)}
=1pq
answered
Dec 16, 2015
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srestha
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