Casio SERIES FX-9860G - Manual (Page 352)

20070201
k Normal Distribution
u Normal Probability Density
Normal probability density calculates the probability density of nomal distribution from a
specifi ed
x value. Normal probability density is applied to standard normal distribution.
(
σ > 0)
Perform the following key operations from the statistical data list.
5(DIST)
1(NORM)
1(Npd)
Data is specifi ed using parameter specifi cation. The following shows the meaning of each
item.
x ................................. data
σ ................................. standard deviation ( σ > 0)
μ ................................. mean
Save Res .................... list for storage of calculation results (None or List 1 to 26)
Execute ....................... executes a calculation or draws a graph
• Specifying
σ = 1 and μ = 0 specifi es standard normal distribution.
After setting all the parameters, use c to move the highlighting to “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.
Calculation Result Output Example
p ................................. normal probability density
πσ
2
f (x) =
1
e
–
2 2 σ
(x – μ )
2 μ
πσ
2
f (x) =
1
e
–
2 2 σ
(x – μ )
2 μ
# V-Window settings for graph drawing are set
automatically when the Setup screen’s [Stat
Wind] setting is [Auto]. Current V-Window
settings are used for graph drawing when the
[Stat Wind] setting is [Manual].
6-7-3
Distribution