A box contains 20 gold bars, numbered 1 to 20. One bar is drawn randomly at a time. What is the probability that it is 12 or 16? What is the probability that it is 7 or a number divisible by 3? What is the probability that it is an odd or a number divisible by 5?

A box contains 20 gold bars, numbered 1 to 20. One bar is drawn randomly at a time. What is the probability that it is 12 or 16? What is the probability that it is 7 or a number divisible by 3? What is the probability that it is an odd or a number divisible by 5?

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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A box contains 20 gold bars, numbered 1 to 20. One bar is drawn randomly at a time.

What is the probability that it is 12 or 16?

What is the probability that it is 7 or a number divisible by 3?

What is the probability that it is an odd or a number divisible by 5?

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