Plotting Distributions

Probability distribtions can be calculated from:

CALC>PROBABILITY DISTRIBUTIONS

The dialog uses the standard normal distribution and we calculate the cumulative probability for 1.96

Cumulative Distribution Function Normal with mean = 0 and standard deviation = 1    x  P( X <= x ) 1.96     0.975002

The result can be illustrated graphically using:

GRAPH>PROBABILITY DISTRIBUTION PLOT>VIEW PROBABILITY>SHADED AREA

Here is an example of Fisher's F distribution with degrees of freedom 10 and 20.

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