Drawing A Med-Med Graph - Casio CLASSPAD 330 3.04 User Manual

Drawing a Med-Med Graph

When you suspect that the data contains extreme values, you should use the Med-Med
graph (which is based on medians) in place of the linear regression graph. Med-Med graph is
similar to the linear regression graph, but it also minimizes the effects of extreme values.
Cla Pad Operation
Start the graphing operation from the Statistics application's Graph window or List window.
From the Graph window
Tap [Calc] [MedMed Line] [OK] [OK]
From the Li t window
Tap [SetGraph][Setting...], or
On the Set StatGraphs dialog box that appears, configure a StatGraph setup with the
setting shown below, and then tap [Set].
Type: MedMed
Tap to draw the graph.
The following is the Med-Med model formula.
y a · x b
= +
a
: Med-Med graph slope
b
: Med-Med graph
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.
7-5-6
Graphing Paired-Variable Statistical Data
.
.
y
-intercept
20060301