Question

If two unbiased coins are tossed once, what is the probability of getting::
All heads

Answer 1

A] $P\left(H\right)=\frac{1}{2}$ $P\left(H\right)=\frac{1}{2}$

P (all heads) = P (H H)$=\frac{1}{2}\times \frac{1}{2}=\frac{1}{4}$