Question: 1. a. Three people flip a fair coin. What is the probability that exactly two of them will get heads? b. Twenty people flip a

1.

a. Three people flip a fair coin. What is the probability that exactly two of them will get heads?

b. Twenty people flip a fair coin. What is the probability that exactly eight of them will get heads?

c. Twenty people flip a fair coin. What is the probability that at least 4 of them will get heads?


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