Exercise: Use AVERAGEX to average a ratio

This exercise is provided to allow potential course delegates to choose the correct Wise Owl Microsoft training course, and may not be reproduced in whole or in part in any format without the prior written consent of Wise Owl.

The answer to the exercise will be included and explained if you attend the Wise Owl course listed below!

Category ==> PowerPivot 2010  (26 exercises)
Topic ==> Measures  (2 exercises)
Level ==> Harder than average
Course ==>
Before you can do this exercise, you'll need to download and unzip this file (if you have any problems doing this, click here for help).

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To start, if you haven't already done so run the script in the above folder to generate the MAM database (not for commercial use or copying).

Create the following pivot table based on the two tables tblCentreType and tblCentre:

Total area and number of units

You shouldn't need to create any measures for this bit of the exercise.

Here's what your PowerPivot field list should look like at this point:

PowerPivot field list

The list of fields in the PowerPivot data model.


Create a measure and display it in your pivot table to show the average ratio of square metre area to number of units for each shopping centre:

Average ratio of areas

The average ratios include some which display errors.

Use the AVERAGEX function.

Why do some rows show an error? 

Double-click on one of the average ratios which doesn't contain errors, and test in Excel that PowerPivot is showing the correct answer.

Save this workbook as How to get round this, and close it down.

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