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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
The following two-way contingency table gives the breakdown of the population of patrons at a grocery store according to the number of items purchased and whether or not the patron made an impulse purchase at the checkout counter:

A patron is selected at random. Find each of the following probabilities.
a. The patron made an impulse purchase.
b. The patron made an impulse purchase, given that the total number of items purchased was many.
c. Determine whether or not the events “few purchases” and “made an impulse purchase at the checkout counter” are independent.
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