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 e-Marketer conducted a survey of Internet shoppers and found 15% said they shop more "online" now than they did last year. If a sample of 69 Internet shoppers is randomly selected (Input answers to four decimal places): 


(a) What is the probability that exactly 16 individuals in the sample will say they do more online shopping now than they did a year ago? 

 

 
(b) What is the probability that the number of people in the sample who are doing more shopping online will be more than 3 but at most 16? 

 

 
(c) What is the probability that at least 4 people in the sample will say they are doing more online shopping? 

 
 Feb 5, 2016

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