Suppose 60 percent of the customers at pizza palooza order a square pizza, 70 percent order a soft drink, and 42 percent order both a square pizza and a soft drink.  is ordering a soft drink independent of ordering a square pizza?  a. No b. Yes

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter2: Systems Of Linear Equations
Section2.4: Applications
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Suppose 60 percent of the customers at pizza palooza order a square pizza, 70 percent order a soft drink, and 42 percent order both a square pizza and a soft drink. 
is ordering a soft drink independent of ordering a square pizza? 
a. No

b. Yes

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