Posted by **David** on Sunday, October 10, 2010 at 2:01pm.

A superstore manager wishes to give out a survey to a sample of 25 of its workers. It wants the sample to be a good representation of the workers. The table shows the numbers of workers in each section of the work force:

Working tills: 32

Stacking shelves: 24

Office/managers: 24

Warehouse: 20

Describe exactly how this can be done.

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