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in Mathematics by (54.1k points)

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 

(B) –1

(C) –2 

(D) –1.8

1 Answer

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Best answer

Answer is (D)

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