fair coin is flipped three times. What is the probability that there will be at least two heads? What is the probability of flipping exactly two heads, given that there are at least 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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A fair coin is flipped three times. What is the probability that there will be at least
two heads? What is the probability of flipping exactly two heads, given that there
are at least two heads?

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