Examples for

Random Variables
A random variable is a statistical function that maps the outcomes of a random experiment to numerical values. Specify the probability distribution underlying a random variable and use Wolfram|Alpha's calculational might to compute the likelihood of a random variable falling within a specified range of values or compute a random variable's expected value.

Expected Value

Compute the expected value of a random variable from a specified probability distribution.

Compute the expected value of a random variable:

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Probability Computations

Compute the probability that the outcome of a random variable from a specified probability distribution will lie within a range of values.

Compute the probability of an event:

Compute a conditional probability:

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