SOLUTION: What is the probability of obtaining exactly four heads in five flips of a coin, given that at least three are heads? (Enter the probability as a fraction.)

Question 852894: What is the probability of obtaining exactly four heads in five flips of a coin, given that at least three are heads? (Enter the probability as a fraction.)
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!

 

Hi,

Independent Events

five flips 

P(x = 4Hs|3Hs) Note: last two flips can be HH, HT,TH, TT

P(x = 4Hs|3Hs)= 2/4 = 1/2

 

RELATED QUESTIONS

What is the probability of obtaining exacty seven heads in eight flips of a coin, given... (answered by Edwin McCravy)
We flip a fair coin 10 times. What is the probability that
a. We get heads in exactly 8... (answered by Boreal)
What is the probability of obtaining exactly eight heads in nine flips of a coin, given... (answered by stanbon)
What is the probability of getting exactly 4 heads in 8 flips of a fair... (answered by ikleyn)
A balanced coin is tossed 8 times.  What is the probability of getting exactly 2 heads... (answered by edjones)
	What is the probability of obtaining at least one head in 3 flips of a coin?  (answered by Alan3354)
	What is the probability of obtaining at least one head in 3 flips of a coin?  (answered by Alan3354)
	What is the probability of obtaining at least one head in 3 flips of a coin?  (answered by scott8148)
What is the probability of obtaining at least one head in seven flips of a... (answered by robertb)