In some homes a mothers behavior seems to be independent of her babys and vice versa. If

Question:

In some homes a mother’s behavior seems to be independent of her baby’s and vice versa. If the mother looks at her child a total of 2 hours each day, and if the baby looks at the mother a total of 3 hours each day, and if they really do behave independently, what is the probability that they will look at each other at the same time?