# Calculating the mean of a series for several time periods

## Objectives

Changing the frequency of the document

Using Statistics to calculate the mean of the series for several time periods.

Creating several observation labels displaying the same information

## Solution

If you get stuck, use the worksheet to see what to do next.

If you need more detailed help, have a look at the learning resources below.

The Macrobond document is also available for download here.

### Learning resources for this case

Changing the frequency of a series

Working with Observation labels