Question

A coin is flipped and a random marble is picked from a bag of 10 marbles. Two of the marbles in the bag are red. What is the probability of the coin landing on tail and a red marble being drawn? Enter your answer as a fraction in simplest form in the box.

Answer 1

A coin flip has a 1/2 probability of landing on tails.

There are 2 red marbles and 10 total marbles.

The probability of picking a red marble would be 2/10, which reduces to 1/5.

The probability of both tails and a red marble would be 1/2 x 1/5 = 1/10