An unbiased coin is tossed 5 times.
An unbiased coin is tossed 5 times. Find the chance that head will appear exactly 3 times.
Answer/Solution
5/16
Steps/Work
Explanation :
Reqd probability
= 5C3 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 C
Reqd probability
= 5C3 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 C