Business Statistics

124 Business Statistics

4.4.6.1  Interquartile  Range  for  Individual  Series,  Discrete  Frequency    Distribution,  and  

  Continuous Frequency Distribution 

In Chapter 3, we have already discussed the procedure for computing rst and third quartiles for an

individual series, a discrete frequency distribution, and a continuous frequency distribution. The for-

mula for computing interquartile range, semi-interquartile range, and coefcient of quartile deviation

is based on rst quartile Q

1

and third quartile Q

3

. We use Example 4.4 to understand the procedure of

computing interquartile range, semi-interquartile range, and coefcient of quartile ...