Test Index

Measures of Central Tendency and Dispersion

Question : 146 of 211

Marks: +1, -0

The mean deviation of 3,4,5,3 is

Solution:

Concept:

Mean deviation is the average of absolute deviations of data points from the mean.

Explanation:

Data:

3, 4, 5, 3

Mean =

\frac{3+4+5+3}{4} = \frac{15}{4} = 3.75

Absolute deviations:

|3-3.75| = 0.75

|4-3.75| = 0.25

|5-3.75| = 1.25

|3-3.75| = 0.75

Sum of absolute deviations =

0.75 + 0.25 + 1.25 + 0.75 = 3.0

Mean deviation =

\frac{3.0}{4} = 0.75

Answer:

0.75

Go to Question:

Prev Question

Next Question