Casio ClassPad 330 - Normal Distribution Curve (Ndist)

20060301
7-4-3
Graphing Single-Variable Statistical Data
k
Graph Parameter Settings (page 7-3-3, 7-3-4)
• [XList] specifies the list that contains the data to be plotted.
• [Freq] specifies the frequency of the data.
• If [Show Outliers] box is checked, “outlier” square symbols are shown instead of “whisker”
lines where a data value is relatively large or small compared to the other data values.
Tip
• When specifying a list of frequency values, make sure that the list contains positive integers only.
Non-integer values (such as those with a decimal part) cause an error during statistical
calculations.
Normal Distribution Curve (NDist)
The normal distribution curve is graphed using the following normal distribution function.
y
=
1
2 π σn
e
–
2σ n
2
(
x–x
)
2
Figure. Do not show Outliers Figure. Show Outliers
k
Graph Parameter Settings (page 7-3-3, 7-3-4)
• [XList] specifies the list that contains the data to be graphed.
• [Freq] specifies the frequency of the data.