SOLUTION: What is the probability of obtaining at least one head in 3 flips of a coin?

Algebra ->  Probability-and-statistics -> SOLUTION: What is the probability of obtaining at least one head in 3 flips of a coin?       Log On


   

Question 604415: What is the probability of obtaining at least one head in 3 flips of a coin?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
What is the probability of obtaining at least one head in 3 flips of a coin?
----------
The probability of none is (1/2)*1/2)*1/2) = 1/8
Of at least 1 is 1 - 1/8 = 7/8