Casio FX-7400GII - SOFTWARE VERSION 2-00 User Manual page 160

4. Press , select the RUN • MAT (or RUN) mode, press
( (PROB) on the fx-7400G
(Normalized variate
(Normalized variate
(Percentage of total)
(Percentile)
Drawing a Normal Probability Distribution Graph
You can draw a normal probability distribution graph using manual graphing with the
RUN • MAT (or RUN) mode.
1. From the Main Menu, enter the RUN • MAT (or RUN) mode.
2. Input the commands to draw a rectangular coordinate graph.
3. Input the probability value.
Example To draw a normal probability P (0.5) graph.
RUN • MAT (or RUN)
(SKTCH)
(GRPH) (Y=)
( ) (PROB)*
Calculations Using the Distribution Function
Important!
• The following operations cannot be performed on the fx-7400G
You can use special functions in the RUN • MAT mode or PRGM mode to perform calculations
that are the same as the STAT mode distribution function calculation (page 6-38).
Example To calculate normal probability distribution in the RUN • MAT mode for
the data {1, 2, 3}, when the population standard deviation is
the population mean is
II
) to recall the probability calculation (PROB) menu.
t
(PROB)* ( ) ( ()
II
* fx-7400G : (PROB)
t
for 160.5 cm)
t
( ()
t
for 175.5 cm)
(P()
(P()
(R()
(Cls)
( ) (P()
II
* fx-7400G : (PROB)
= 2.
6-20
( ) (PROB)
Result: –1.633855948
( –1.634)
Result: 0.4963343361
Result: 0.638921
(63.9% of total)
Result:
(31.0 percentile)
II
.
= 1.5 and
( 0.496)
0.30995