Measures Of Dispersion in Higher Physics : Practice MCQ Questions & Answers with Explanations

Which of the following is a unit free quantity:

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

Which of the following measures of dispersion is expressed in the same units as the units of observation?

The sum of squares of the deviations is minimum, when deviations are taken from:

The average of squared deviations from mean is called:

Mean deviation computed from a set of data is always:

The mean deviation of the scores 12, 15, 18 is:

If Y = aX ± b, where a and b are any two numbers but a ≠ 0, then M.D(Y) is equal to:

The mean deviation is minimum when deviations are taken from:

The sum of absolute deviations is minimum if these deviations are taken from the:

If Y = aX ± b, where a and b are any two constants and a ≠ 0, then the quartile deviation of Y values is equal to:

Which measure of dispersion can be computed in case of open-end classes?

If Q3=20 and Q1=10, the coefficient of quartile deviation is:

Half of the difference between upper and lower quartiles is called:

If the maximum value in a series is 25 and its range is 15, the maximum value of the series is:

If Y = aX ± b, where a and b are any two numbers and a ≠ 0, then the range of Y values will be:

The range of the values -5, -8, -10, 0, 6, 10 is:

If the observations of a variable X are, -4, -20, -30, -44 and -36, then the value of the range will be:

The range of the scores 29, 3, 143, 27, 99 is:

In quality control of manufactured items, the most common measure of dispersion is: