44
k
k
k
k
k
Normal Distribution
u
u
u
u
u
Normal Probability Density
Normal probability density calculates the probability density of nomal distribution that data
taken from a specified
x
value. Normal probability density is applied to standard normal
distribution.
"#
2
f
(
x
) = 1
e
–
2
2
#
(x
–
µ
)
2
µ
(
#
> 0)
Perform the following key operation from the statistical data list.
5
(DIST)
b
(Norm)
b
(P.D)
Data is specified using parameter specification. The following shows the meaning of each
item.
x
.................................. data
#
.................................. population standard deviation (
#
> 0)
µ
.................................. population mean
Save Res .................... list for storage of calculation results (None or List 1 to 20)
Execute ....................... executes a calculation or draws a graph
•
Specifying
#
= 1 and
µ
= 0 specifies standard normal distribution.
After setting all the parameters, align the cursor with [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
# V-Window settings for graph drawing are set
automatically when the SET UP screen's
[Stat Wind] setting is [Auto]. Current V-
Window settings are used for graph drawing
when the [Stat Wind] setting is [Manual].
