A fair 2 sided coin is flipped 6 times. What is the probability that tails will be the result at least twice, but not more than 4 times?  Choose the correct choice from the following
A) 25/32	B) 13/4	C) 17/8	D) 57/64	E) 15/16
at least twice, but not more than 5 timesmeans exactly 2 times, 3 times, 4 times   The probability of getting exactly k results out of n flips is nCk/2^n   6C2/2^6+6C3/2^6+6C4/2^6=(20+15+15)/2^6=25/32   Option: 25/32
<result>A</result>
A fair 2 sided coin is flipped 6 times. What is the probability that tails will be the result at least twice, but not more than 4 times?