### Transform > Probability Distribution

Probability Distributions lets you calculate the values of a probability density function (pdf), cumulative probabilities, or inverse cumulative probabilities for 10 different data distributions. You can calculate probabilities for the following distributions:

•Normal

•Chi-Square

•t

•Beta

•Gamma

•Logistic

•Binomial

•Poisson

•Geometric

•Negative Binomial

•Exponential

•F

•LogNormal

•Triangular

•Uniform

•Weibull

### Example

The following example is for a normal distribution; however, the method is similar for other distributions.

The dataset contains information on the year, the two teams in the world series (an American and National League Champion), whether the American League (AL) or National League (NL) won the game, and the AL and NL winning at home or away percentage.

Source: http://lib.stat.cmu.edu/DASL/Datafiles/WorldSeries.html

1.Open the DataBook calc.vstz

2.Select the sheet WorldSeries

3.Choose the tab Transform, the group Probability Distribution and the command Normal

4.In Source Column, select amer.away

5.Click OK

Web Resource: NIST e-Handbook of Statistical Methods, 2006