Based on a study from the Chronicles of Flippin'' Awesomeness, the probability that Napoleon and Pedro make it to their first period class on time is 0.30.  The probability that they make it to their first period class on time, given that they catch the bus is 0.90.  The probability that Napoleon and Pedro catch the bus and make it to their first period class on time is 0.21.  What is the probability that Napoleon and Pedro catch the bus?

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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Based on a study from the Chronicles of Flippin'' Awesomeness, the probability that Napoleon and Pedro make it to their first period class on time is 0.30.  The probability that they make it to their first period class on time, given that they catch the bus is 0.90.  The probability that Napoleon and Pedro catch the bus and make it to their first period class on time is 0.21.  What is the probability that Napoleon and Pedro catch the bus?

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