If lower and upper quartiles of the data are 23 and 25 respectively, then coefficient of quartile deviation is ______.

If lower and upper quartiles of the data are x and y respectively, then quartile deviation is _____.

The lower and the upper quartiles of a disiribution are 14.6 and 25.2 respectively and the coefficient of skewness is 0.5. Find the median of the distribution.

If Q_(1) = 20, Q_(3) = 48 , then coefficient of quartile deviation is :

If Q_(1)=153 , P_(75)=155 , then coefficient of quartile devision is

The quartiles of a variable are 45, 52 and 65 respectively.Its quartile deviation is

If upper quartile and inter-quartile range of a data are 55 and 5 respectively, then find the value of lower quartile