Possible head-tail sequences that can occur when you flip a

tripplek7i

tripplek7i

Answered question

2022-01-22

Possible head-tail sequences that can occur when you flip a coin three times.
(a) How many sequences contain exactly two heads?
(b) Probability extension: Assuming the sequences are all equally likely, what is the probability that you will get exactly two heads when you toss a coin three times?

Answer & Explanation

nick1337

nick1337

Expert2022-01-27Added 777 answers

(a) Number of sequences contain exactly two heads is 3 (b) Required probability is P(getting exactly two heads) P(getting exactly two heads)=38=0.375

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