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Questions  >>  CBSE XII  >>  Math  >>  Probability
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Q)

For the following probability distribution:

X -4 -3 -2 -1 0 P(X) 0.1 0.2 0.3 0.2 0.2 E(X) is equal to $(A)\;0\quad(B)\;-1\quad(C)\;-2\quad(D)\;-1.8$

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