## Dispersion Exercises

Return to Measures of Dispersion page

This page presents multiple data sets and for each you are to find,
using **RStudio**, various measures of dispersion, the
**range**, the **quartiles**, and the **standard deviation**.
The **standard deviation** is to be computed twice, once for
a **sample**, and once for a population. While you are at it, you
asked to also find the **mean**, the **median**, and the
**mode**, which are measures of central tendency.
In order that you can check your work, the answers are given for each data set.

### Case 1:

For the data set in **Table I**, find the mean, the median, the mode,
the first and third quartiles, and the standard deviation, both treating the
data set as a sample and as a population.

### Case 2:

For the data set in **Table II**, find the mean, the median, and the mode,
the first and third quartiles, and the standard deviation, both treating the
data set as a sample and as a population.

### Case 3:

For the data set in **Table III**, find the mean, the median, and the mode,
the first and third quartiles, and the standard deviation, both treating the
data set as a sample and as a population.

### Case 4:

For the data set in **Table IV**, find the mean, the median, and the mode,
the first and third quartiles, and the standard deviation, both treating the
data set as a sample and as a population.

### Case 5:

For the data set in **Table V**, find the mean, the median, and the mode,
the first and third quartiles, and the standard deviation, both treating the
data set as a sample and as a population.
Return to Measures of Dispersion page

©Roger M. Palay
Saline, MI 48176 January, 2018