Civil Engineering > GATE 2025 SET-1 > Probability
X is a random variable that can take any one of the values 0, 1, 7, 11, and 12. The probability mass function for X is P(X=0)=0.4; P(X=1)=0.3; P(X=7)=0.1; P(X=11)=0.1; P(X=12)=0.1. Then, the variance of X is
Correct : a
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