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Tutorial Question
A survey of consumer profile of 3 commodities, A, B & C
among 140 consumers revealed the following conditions:
14 patronise B only
39 patronise C only
9 patronise A & C but B
14 patronise A & B
82 patronise either B or C or both but not A
60 patronise either A or B or both but not C
Calculate:
(i) The number of consumers who patronize all the
products
The number of those who patronize at least 2 products
(111) The number of those who patronize one product.
(ii)​

Respuesta :

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