
A First Course in Probability (10th Edition)
10th Edition
ISBN: 9780134753119
Author: Sheldon Ross
Publisher: PEARSON
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Transcribed Image Text:Use the data in the following table, which lists drive-thru order accuracy at popular fast food chains. Assume that orders are randomly selected from those included
in the table.
Drive-thru Restaurant O
C
321
36
267
233
121
Order Accurate
Order Not Accurate
53
38
14
If two orders are selected, find the probability that they are both accurate. Complete parts (a) and (b) below.
a. Assume that the selections are made with replacement. Are the events independent?
The probability is 0.7566 The events
(Do not round until the final answer. Round to four decimal places as needed.)
are
independent.
b. Assume that the selections are made without replacement. Are the events independent?
The probability is The events
independent.
are
(Do not round until the final answer. Round to four decimal places as needed.)
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