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Earn +20 ptsQ: Uses of quartile deviation
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What is quartile deviational?
Quartile Deviation (QD)The quartile deviation is half the difference between the upper and lower quartiles in a distribution. It is a measure of the spread through the middle half of a distribution. It can be useful because it is not influenced by extremely high or extremely low scores. Quartile Deviation is an ordinal statistic and is most often used in conjunction with the median.why we calculating quartile deviation?
If q1q2q3 are three quartiles then Coefficent of quartile deviation is?
coefficient of quartile deviation is = (q3-q1)/(q3+q1)
Is the ratio of quartile deviation to mean deviation is raw?
yes
What is the use of quartile deviation?
* * 4-22
What is the formula for quartile deviation?
(q3-q1)/2
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