When a coin is flipped, there are two possible outcomes: heads or tails. If a coin is flipped three times, what is the probability that there will be tails all three times?
A.1/8
B.1/3
C.1/2
D.3/2

Question

When a coin is flipped, there are two possible outcomes: heads or tails. If a coin is flipped three times, what is the probability that there will be tails all three times?
	A.1/8
	B.1/3
	C.1/2	
	D.3/2

raden · Answer

If a coin is flipped three times, all outcomes = {hhh, hht, hth, thh, tth, tht, htt, ttt}, there are 8 space sample. now how many the event of ttt in space sample?

anonymous · Answer

1/2 probability it will be tails. 

You want tails all three times so:
1/2*1/2*1/2=1/8