Question

Three coins are tossed together. Find the probability of getting all heads

Answer 1

The possible outcomes when three coins are tossed together are

{$HHH,TTT,THT,TTH,HHT,HTH,THH,HTT$}. Therefore, the number of possible outcomes when two coins are tossed is $8$.

Now, the possible outcome of getting all heads is {$HHH$}, which means the number of favourable outcome is $1$.

Therefore, probability $P$ of getting all heads is:

$P=\frac{1}{8}$

Hence, the probability of getting all heads is $\frac{1}{8}$.