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Random variable (view source)

Revision as of 02:22, April 28, 2007

698 bytes added ,  02:22, April 28, 2007
New page: A random variable is a function that assigns a unique numerical value to every possible event having an outcome dependent on chance. The random variable will typically be different for ea...
A random variable is a function that assigns a unique numerical value to every possible event having an outcome dependent on chance. The random variable will typically be different for each new event, such as a new toss of a coin.

There are discrete and continuous random variables. An example of a discrete random variable is the umber of heads observed in the ten tosses of a coin. This random variable can only have the values 0, 1, 2, ... or 10. An example of a continuous random variable is the mileage on your car until it breaks down. It can have any positive value.

== Sources ==

[http://www.stats.gla.ac.uk/steps/glossary/probability_distributions.html#randvar Statistics Glossary]
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