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A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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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.)
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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