Measures of Dis...

The co-efficient of mean deviation of first five natural numbers is _____.

Which measure of dispersion has a different unit other than the unit of measurement of values?

A set of values is said to be relatively uniform if it has ________.

If the minimum value in a set is $$15$$ and its range is $$55$$, the maximum value of the set is _______.

If the value of a set are measured in kgs, the unit of variance will be ______.

Which of the following measures of dispersion can attain a negative value?

In distribution $$25\%$$ of the observations are less than $$46$$ and $$25\%$$ of the observations are more than $$54$$. The quartile deviation of the distribution is _______.

Which measure of dispersion ensures lowest degree of reliability?

The sum of $$10$$ observations is $$110$$ and the sum of squares of observations is $$2900$$, their standard deviation is ______.

The C.V of a distribution is $$80\%$$ and the mean of the distribution is $$40$$, the S.D of the distribution is ________.