A coin is tossed six times. What is the probability that exactly three heads will show?
(a) 9/16
(b) 1/2
(c) 7/16
(d) 5/16
(e) 3/16
[spoiler]I solved@ # ways three heads = 6C3; eP(3 heads)=P(3 heads)*P(3 tails)= 1/8 * 1/8; P(3 heads in 6 tosses)=20*1/64=5/16[/spoiler]
(a) 9/16
(b) 1/2
(c) 7/16
(d) 5/16
(e) 3/16
[spoiler]I solved@ # ways three heads = 6C3; eP(3 heads)=P(3 heads)*P(3 tails)= 1/8 * 1/8; P(3 heads in 6 tosses)=20*1/64=5/16[/spoiler]
