1-4-9

Distribution (DIST)

Calculation Result Output Example

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

Student-tdistribution probability

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

t:Low value (input lower value)

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

t:Up value (input upper value)

kχ2 Distribution

uχ2 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) d(χ2)

b(P.D)

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 20)

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

executes a calculation or draws a graph

After setting all the parameters, align the cursor with [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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