A fair coin is tossed 3 times. What is the probability of getting at least 2 tails? Pick.
A) 3/4 B) 3/2 C) 1/2 D) 3/4 E) 1/4
Let's find the probability of 2 tails , 3 tails   P(TTT)=((1/2)^3=1/8.   P(HTT)=(3!/2!)*(1/2)^3=3/8   Total Probablity = 1/8 + 3/8   =1/2   Answer(1/2)
<result>C</result>
A fair coin is tossed 3 times. What is the probability of getting at least 2 tails?