Formula Of Quartile Deviation For Grouped Data. Coefficient of Quartile Deviation is used to compare the variation in two data. Based on the table 105 14 8 6 14 12 2 and.
Quartile Deviation Third Quartile First Quartile 2 Quartile Deviation Q3 Q1 2 While the coefficient of quartile deviation is used to compare the variation between two data sets6687 Moreover quartile deviation is not affected by the extreme values where it contains extreme values. Quartile Deviation Q3-Q12 6805 - 2752 20275. It is often regarded as semi interquartile range.
Thus the dispersion or the spread of only the central 50 data is considered.
The distribution can similarly be divided in more equal parts four five six etc. Quartile Deviation Third Quartile First Quartile 2 Quartile Deviation Q3 Q1 2 While the coefficient of quartile deviation is used to compare the variation between two data sets6687 Moreover quartile deviation is not affected by the extreme values where it contains extreme values. Based on the table 105 14 8 6 14 12 2 and. Jan 07 2014 Subtract Q1 from Q3 and divide the difference by 2.
