Question

If P(x) = 0.8 and x = 3, then find the value of E(x)

A 2.6 Correct Answer Incorrect Answer
B 2.8 Correct Answer Incorrect Answer
C 2.2 Correct Answer Incorrect Answer
D 2.9 Correct Answer Incorrect Answer
E 2.4 Correct Answer Incorrect Answer

Solution

E(x) = x P(x) = 0.8*3 = 2.4

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