Sharp el-9950 - Page 158

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Chapter 8: Statistics & Regression Calculations
Aboxplotgraphofsample(x)
A. Theminimumvalue(xmin)of
the sample (x)
B. The first quartile (Q1)
C. Median(Med)ofthesample
(x)
D. The third quartile (Q3)
E. The maximum value (xmax) of the sample (x)
Amodiedboxplotgraphofsample(x)
A. Theminimumvalue(xmin)of
the sample (x)
B. The tip of extension which is
defined by (Q3
–
Q1) x 1.5
C. Therstquartile(Q1)
D. Median (Med) of the sample (x)
E. The third quartile (Q3)
F. Thetipofextensionwhichisdenedby(Q3
–
Q1) x 1.5
G. Themaximumvalue(xmax)ofthesample(x)
• Statisticaldataontheoutsideoftheextensionareindicatedby
points, selectable from circle, cross, or square.
• ThelengthoftheextensionfromtheboxisdeterminedbyQ1
and Q3.
A EB C D
A B C D E F G
Box plot
(Box)
Modified box
plot
(MBox)