Question

Type the correct answer in the box. If necessary, use / for the fraction bar. A fair coin is tossed 5 times in a row. The exact probability of the coin landing heads exactly 2 times is .

Answer 1

5/16

Explanation:

Answer 2

The probability is
`(5)/(16)`

Explanation:

Given is that a fair coin is tossed 5 times in a row.

This gives total number of outcomes as =
`2*2*2*2*2=32`

As its needed that heads comes exactly 2 times, so favorable outcomes are = 5C2

`(5!)/(2!(5-2)!)`

Solving this we get 10

Therefore, the probability of getting heads exactly 2 times is =

`(10)/(32)=(5)/(16)`