Question

# Quartile deviation is equal to _______.

A
semi - interquartile range
B
double the interquartile range
C
interquartile range
D
none of the above

Solution

## The correct option is A semi - interquartile range  Quartile deviation also known as semi inter-quartile deviation divides the series into four equal parts and measures the distance average between the third and the first quartile. The first quartile is denoted as Q1 and the third quartile is denoted as Q3 .Quartile deviation or semi inter-quartile deviation = (Q3-Q1) /2Maths

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