# Posts Tagged ‘Probability’

## Probability Slideshow posted by Mike Shelly on Slideshare.com

Posted by nepeht on December 19, 2008

Posted in Notes | Tagged: Probability | 1 Comment »

## P Value

Posted by nepeht on November 22, 2008

http://en.wikipedia.org/wiki/P-value.

In statistical hypothesis testing, the p-value is the probability of obtaining a result at least as extreme as the one that was actually observed, given that the null hypothesis is true. The fact that p-values are based on this assumption is crucial to their correct interpretation.

More technically, a p-value of an experiment is a random variable defined over the sample space of the experiment such that its distribution under the null hypothesis is uniform on the interval [0,1]. Many p-values can be defined for the same experiment.

From Wikipedia.

Posted in Glossary, Notes | Tagged: P Value, Probability | Leave a Comment »