GRE Subject Test: Math : Uniform Distribution

Study concepts, example questions & explanations for GRE Subject Test: Math

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Example Questions

Example Question #1 : Uniform Distribution

X is a continuously and uniformly distributed on the interval (0,50). Find the Expected Value (E[x]) and Variance (Var(x)) of X.

Possible Answers:

Correct answer:


Because x is a continuous uniform random variable the expected value and variance can be found with the following formulas:

X is uniform on (a,b). In this case a is 0 and b is 50. Plugging the values of a and b into the given formulas will give the answers:


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