Traffic analysis for an online store reveals that 31% of all users who visit the website end up making a purchase. If 11 users visit the store in a given hour, what is the probability that at least 3 make a purchase ? Round to 4 decimal places.  If there are now 119 visitors, what is the probability that more than 48 end make a purchase? Round to 4 decimal places.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Traffic analysis for an online store reveals that 31% of all users who visit the website end up making a purchase.

If 11 users visit the store in a given hour, what is the probability that at least 3 make a purchase ? Round to 4 decimal places. 

If there are now 119 visitors, what is the probability that more than 48 end make a purchase? Round to 4 decimal places.

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