### All GRE Subject Test: Math Resources

## Example Questions

### Example Question #1 : Discrete Distributions

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:**

Explanation:

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:

Samuel

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SUNY at Binghamton, Bachelors, English. CUNY Queens College, Current Grad Student, Mathematics Education.

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Portland State University, Bachelors, Economics. Portland State University, Masters, Environmental and Resource Management.

### All GRE Subject Test: Math Resources

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