You toss 3 coins what is the probability that you get exactly 2 heads given that you get at least one tail

Seeing as there are three coins, which means there are 3 heads and 3 tails.There's only a 50% chance it'll land on either side one one coin. I believe the chances to get two heads, and one tail would be somewhere around 80%, since there are only 8 possible outcomes.

Idon't know the answer