Eight coins are tossed simultaneously. In how many of the outcomes will the third coin turn up a head?
Options
A) 2^9
B) 2^10
C) 3 * 2^8
D) 2^7
E) 3 * 2^10
Fix the third coin as H. The remaining 7 coins have 2^7 outcomes.   Ans:2^7
<result>D</result>
Eight coins are tossed simultaneously. In how many of the outcomes will the third coin turn up a head?