If one order is randomly​ selected, what is the probability of getting an order from Restaurant A or an order that is​ accurate? ​(Round to three decimal places as​ needed.) ​(b) If one order is randomly​ selected, what is the probability that the order is from Restaurant​ A, given that the order is​ accurate? ​(Round to three decimal places as​ needed.)

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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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.

 

    Restaurant A    Restaurant B    Restaurant C    Restaurant D
 Order Accurate    327    270    230    125
 Order Not Accurate    34    54    33    11

 

  1. a) If one order is randomly​ selected, what is the probability of getting an order from Restaurant A or an order that is​ accurate? ​(Round to three decimal places as​ needed.)

​(b) If one order is randomly​ selected, what is the probability that the order is from Restaurant​ A, given that the order is​ accurate? ​(Round to three decimal places as​ needed.)

 

 

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