A fair 2 sided coin is flipped 7 times. What is the probability that tails will be the result at least twice, but not more than 7 times?	Choose the correct option.
A) 119/128
B) 120/113
C) 114/210
D) 121/141
E) 104/117
at least twice, but not more than 7 timesmeans exactly 2 times, 3 times, 4 times, 5 times, 6 times, 7 times   The probability of getting exactly k results out of n flips is nCk/2^n   7C2/2^7+7C3/2^7+7C4/2^7+7C5/2^7+7C6/2^7=119/128   Option: 119/128
<result>A</result>
A fair 2 sided coin is flipped 7 times. What is the probability that tails will be the result at least twice, but not more than 7 times?