Question

Two coins are tossed together. What is the probability of getting at the most two tails?

Answer 1

The possible outcomes when two coins are tossed together are {$HH,TT,HT,TH$}. Therefore, the number of possible outcomes when two coins are tossed is $4$.

Now, the possible outcomes of getting at most two tail are {$HH,TT,HT,TH$}, which means the number of favourable outcome is $4$.

Therefore, probability $P$ of getting at most two tail is:

$P=\frac{4}{4}=1$

Hence, the probability of getting at most two tail is $1$.