Question

What are the ways in which variability is measured:

a) The difference between the smallest and largest values.
b) The average of the squared differences from the mean.
c) The difference between the smallest and largest values.
d) The average of the squared differences from the mean.

Answer 1

Variability can be measured through range and variance.

Step-by-step explanation:

The ways in which variability is measured include:

1. Range: The difference between the smallest and largest values.
2. Variance: The average of the squared differences from the mean.

For example, if we have the following data set: 1, 3, 5, 7, 9, the range would be (9 - 1) = 8 and the variance would be [(1-5)^2 + (3-5)^2 + (5-5)^2 + (7-5)^2 + (9-5)^2] / 5 = 4.