User Manual
6-9
u OnData
The Q1, Q3 and Med values for this calculation method are described below.
Q1 = {value of element whose cumulative frequency ratio is greater than 0.25 and nearest to
0.25}
Q3 = {value of element whose cumulative frequency ratio is greater than 0.75 and nearest to
0.75}
The following shows an actual example of the above.
(Number of Elements: 10)
Data Value Frequency
Cumulative
Frequency
Cumulative
Frequency Ratio
1 1 1 1/10 = 0.1
2 1 2 2/10 = 0.2
3 2 4 4/10 = 0.4
4 3 7 7/10 = 0.7
5 1 8 8/10 = 0.8
6 1 9 9/10 = 0.9
7 1 10 10/10 = 1.0
• 3 is the value of whose cumulative frequency ratio is greater than or equal to 0.25 and
nearest to 0.25, so Q1 = 3.
• 5 is the value of whose cumulative frequency ratio is greater than or equal to 0.75 and
nearest to 0.75, so Q3 = 5.
Reference Point (0.25) Reference Point (0.75)
• Med is calculated using the same method as that used when the “Std” is selected for the
“Q1Q3 Type” setting.
• It makes no different whether frequency values are all integers or include decimal fraction
values when “OnData” is selected for the “Q1Q3 Type” setting.
• Use of fractional frequency values is supported by the fx-9860G
II SD/fx-9860GII/
fx-9860GII s/fx-9860G AU PLUS only.
Q1
0.1 0.2 0.4 0.7 0.8 0.9 1.0
Q3
1
2633444 75
Q1
0.1 0.2 0.4 0.7 0.8 0.9 1.0
Q3
1
2633444 75