An unbiased coin is tossed 5 times. Find the chance that head will appear exactly 3 times.	Choose the correct choice from the following choices:
A) 18/32  B) 10/16  C) 5/16  D) 5/32  E) 6/34
Explanation :   Reqd probability   = 55/163 x (1/2)3 x (1/2)2   = 5!/3!(5 - 3)! x (1/2)3 x (1/2)2   = 10 x 1/8 x 1/4 = 5/16   Answer : Option 5/16
<result>C</result>
An unbiased coin is tossed 5 times. Find the chance that head will appear exactly 3 times.