Question

a coin is tossed two times find the probability of getting (1 . exactly one head (2.at least one head (3. at most one head​

Answer 1

`|\Omega|=2^2=4`

1.

`|A|=2\\P(A)=(2)/(4)=(1)/(2)`

2.

`|A|=3\\P(A)=(3)/(4)`

3.

`|A|=3\\P(A)=(3)/(4)`