What is the probability that exactly 3 heads

2022-02-23 Answered
What is the probability that exactly 3 heads will appear if a coin is tossed 4 times
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Answers (1)

alenahelenash
Answered 2022-03-10 Author has 368 answers
N=3: To get 3 heads, means that one gets only one tail. This tail can be either the 1st coin, the 2nd coin, the 3rd, or the 4th coin. Thus there are only 4 outcomes which have three heads. The probability is 4/16 = 1/4.
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