6-7-9

Distribution

Calculation Result Output Example

p ..................................

Student-tdistribution probability

t:Low............................

t:Low value (input lower value)

t:Up..............................

t:Up value (input upper value)

k χ2 Distributionu χ2 Probability Density

χ2 probability density calculates the probability density function for the χ2 distribution at a specified x value.

 

 

 

 

 

 

 

df

 

df

–1

x

 

 

1

 

 

1

 

 

 

f(x) =

 

 

 

 

2 x 2 e 2

Γ

df

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Perform the following key operations from the statistical data list.

5(DIST)

3(CHI)

1(Cpd)

Data is specified using parameter specification. The following shows the meaning of each item.

x .................................

data

df ................................

degrees of freedom (positive integer)

Save Res ....................

list for storage of calculation results (None or List 1 to 26)

Execute .......................

executes a calculation or draws a graph

After setting all the parameters, use c to move the highlighting to “Execute” and then press one of the function keys shown below to perform the calculation or draw the graph.

1(CALC) ... Performs the calculation.

6(DRAW) ... Draws the graph.

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