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uu
uu
u χ
2
Distribution Probability
χ
2
distribution probability calculates the probability of χ
2
distribution data falling between two
specific values.
p =
Γ
1
2
df
df
2
x e dx
2
1
df
2
–1
x
2
–
a
b
∫
a : lower boundary
b : upper boundary
Perform the following key operations from the statistical data list.
5(DIST)
3(CHI)
2(Ccd)
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 26)
Execute ....................... executes a calculation
After setting all the parameters, use c to move the highlighting to “Execute” and then press
the function key shown below to perform the calculation.
• 1(CALC) ... Performs the calculation.
# There is no graphing for χ
2
distribution
probability.
6-7-11
Distribution