To determine the effect their salespeople have on purchases, a department store
ID: 3054533 • Letter: T
Question
To determine the effect their salespeople have on purchases, a department store polled 700 shoppers regarding whether or not they made a purchase and whether or not they were pleased with the service they received. Of those who made a purchase, 151 were happy with the service and 143 were not. Of those who made no purchase, 221 were happy with the service and 185 were not. Use probability rules (when appropriate) to find the probability of the event stated. (Enter your answers as fractions.)
(a) A shopper made a purchase.
(b) A shopper did not make a purchase.
Explanation / Answer
from above data:
a)P( A shopper made a purchase)=294/700=21/50
b)P( A shopper did not make a purchase.)=406/700 =29/50
happy not happy total purchase 151 143 294 no purchase 221 185 406 total 372 328 700Related Questions
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