Customers who are registered on a corpora shipping contract they use and the number of customers in each category are shown in selected without replacement. Shipping Contract Exp No orders

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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1. Customers who are registered on a corporate Web site are summarized by the type of
shipping contract they use and the number of orders in the previous month. The number
of customers in each category are shown in the following table. Customers are to be
selected without replacement.
Shipping Contract Express Standard Total
No orders
25
15
40
65
44
109
44
20
64
134
79
213
One order
More than one order
Total
Suppose that three customers are selected randomly, without replacement, for a survey.
a. What is the probability that at least two selected customers use express shipping?
b. What is the probability that customers from all three order categories are selected?
Transcribed Image Text:1. Customers who are registered on a corporate Web site are summarized by the type of shipping contract they use and the number of orders in the previous month. The number of customers in each category are shown in the following table. Customers are to be selected without replacement. Shipping Contract Express Standard Total No orders 25 15 40 65 44 109 44 20 64 134 79 213 One order More than one order Total Suppose that three customers are selected randomly, without replacement, for a survey. a. What is the probability that at least two selected customers use express shipping? b. What is the probability that customers from all three order categories are selected?
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