<PRE><B>Question 196667</B>
Three coins are tossed simultaneously.
a. draw a tree diagram or list all possible outcomes.
hhh,thh,hth,hht,tth,tht,htt,ttt
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b. what is the probability that all three coins will come up heads?
Ans: 1/8
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c. In how many ways can a head and two tails appear?
Ans: 3
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d. what is the probability of obtaining a head and two tails?
Ans: 3/8
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Cheers,
Stan H.

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