12-57. A man has five coins, one of which has two heads. He randomly takes out a coin and tosses if three times. (i) What is the probability that it will fall head upward all the times ? (ii) If it always falls head upward, what is the probability that it is the coin with two heads ?
12-57. A man has five coins, one of which has two heads. He randomly takes out a coin and tosses if three times. (i) What is the probability that it will fall head upward all the times ? (ii) If it always falls head upward, what is the probability that it is the coin with two heads ?
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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