The expected value, E(X), of a uniform random variable X defined over the interval $$a \leq x \leq b$$ , is:
A) a+b
B) a-b
C) $(a+b) / 2$
D)$(a-b) / 2$

Name: The expected value, E(X), of a uniform random variable X defined over the interval \[a \leq x \leq b\] , is: A) a+b B) a-b C) $(a+b) / 2$ D)$(a-b) / 2$
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Question

The expected value, E(X), of a uniform random variable X defined over the interval $$a \leq x \leq b$$ , is: 
A) a+b
B) a-b
C) $(a+b) / 2$
D)$(a-b) / 2$

Quizplus · Accepted Answer

The expected value of a uniform random variable is the average of its minimum and maximum values which is $(a+b) / 2$.

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The Expected Value, E(X), of a Uniform Random Variable X $a \leq x \leq b$