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