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Chapter 8: Statistics & Regression Calculations
1. Graph Types
Histogram
(HIST)
Broken line plot
(B.L.)
Normal
probability plot
(N.P.)
128
A bar graph of sample (x)
The width of the bars is set by the Xscl*.
The Y-axis shows the frequency.
* The Xscl can be changed to between
1 and 64. Use the Window Setting
Menu to change the Xscl. (See page
62.)
A broken line graph for the frequency distribution of sample (x)
Three types of points can be selected.
The broken line is displayed by connecting the upper left points of
the bars of the histogram, as the upper
left point of each bar represents each
class value in the histogram.
The calculator can draw both a
histogram and a broken line plot at the
same time.
Plots the variance of the standardized
normal distribution with the statistical
data (x) on the X axis or Y axis.
If the points plot almost linearly, it
indicates that the data is of normal
distribution.
The distance between the dots is set by the Xscl.
• The Xscl can be changed between 1 and 64. Use the Window
Setting Menu to change the figure. (See page 62)
• You cannot set the frequency in the Normal probability plot. The
statistical data must be created using only one list without
splitting into the data and frequency.
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