Casio CFX-9970G User Manual page 330

18 - 8
Distribution
Perform the following key operation to display a graph.
u u u u u !
2
!
between two specific values.
Perform the following key operation from the statistical data list.
Data is specified using parameter specification. The following shows the meaning
of each item.
Example
J
cc
6(DRAW)
2 distribution probability
distribution probability calculates the probability of !
df
*
1 1 2
p =
2
df
a
-
2
5(DIST)
3(CHI)
2(Ccd)
Lower ............. lower boundary
Upper ............. upper boundary
df
.................... degrees of freedom (positive integer)
Execute .......... executes a calculation
To calculate !
value
For this example, we will calculate !
when lower boundary = 0, upper boundary = 19.023, and
degrees of freedom = 9.
aw
bj.acdw
jw
1(CALC)
2
prob ................ !
b
df x
–1 –
x 2 e 2 dx
2 distribution probability for a specific parameter
distribution probability
2 distribution data falling
a
: lower boundary
b
: upper boundary
2
distribution probability
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