Question

Here is the sample space for three tosses of a coin.

Answer 1

I just finished this test a second ago the answer is 0.125 so it is option A

Answer 2

Assuming the coin is fair, the probability of the coin toss resulting in H is $p=\dfrac12$. So the probability of getting two Hs, in any order, is

$\dbinom32p^2(1-p)=\dfrac38=0.375$