A number between 1 and 100 including 1 and 100 is drawn at random. Answer the following questions: 1) What is the probability that the number drawn was greater than 87 given that the number contained a 9? 2) Given that the number was greater than 87, what is the probability that the number had a 9?

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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A number between 1 and 100 including 1 and 100 is drawn at random. Answer the following questions:

1) What is the probability that the number drawn was greater than 87 given that the number contained a 9?

2) Given that the number was greater than 87, what is the probability that the number had a 9?

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