
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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A political scientist is interested in the effect of government type on economic development. She wants to use
a sample of 30 countries evenly represented among the Americas, Europe, Asia, and Africa to conduct her
analysis. What type of study should she use to ensure that countries are selected from each region of the world?
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