Question 187399: What is the probability of getting 2 heads if a coin is tossed 3 times?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! What is the probability of getting 2 heads if a coin is tossed 3 times?
-----------------
It's a binomial problem with n=3, p = 1/2 , x = 2
P(x=2) = 3C2(1/2)^2(1/2)^1 = 3(1/2)^3 = 3/8
------------------------------------------------
Cheers,
Stan H.
|
|
|
