Homework answers / question archive / A coin is flipped five times

A coin is flipped five times

Math

Share With

---

A coin is flipped five times. For each of the events described below, express the

 

event as a set in roster notation. Each outcome is written as a string of length 5 from {H, T} , such as HHHT H. Assuming the coin is a fair coin, give the probability of each event.

 

(a) The first and last flips come up heads.

 

(b) There are at least two consecutive flips that come up heads.

 

(c) The first flip comes up tails and there are at least two consecutive flips that

come up heads