1-4-11

Distribution (DIST)

uχ2 Distribution Probability

χ2 distribution probability calculates the probability of χ2 distribution data falling between two specific values.

 

 

 

 

 

 

 

df

b

 

 

 

 

a : lower boundary

p =

 

1

 

1

 

2

 

df

–1

–

x

 

b : upper boundary

 

 

 

 

 

 

 

x 2

e

 

2 dx

 

Γ

df

2

 

 

∫a

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Perform the following key operations from the statistical data list.

5(DIST) d(χ2)

c(C.D)

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

Lower ..........................

lower boundary

Upper ..........................

upper boundary

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

degrees of freedom (positive integer)

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

list for storage of calculation results (None or List 1 to 20)

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

executes a calculation

After setting all the parameters, align the cursor with [Execute] and then press the function key shown below to perform the calculation.

• 1(CALC) ... Performs the calculation.

#There is no graphing for χ2 distribution probability.

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