If you roll two dice, what is the probability of rolling a number less than 5 and another odd number?
Because we see the word AND we will have to multiply, but see the "but" later on.
There are 6 possible outcomes:
Multiplying we get
This only counts for the first die giving the under 5, and the second die giving the odd. The other way around has the same probability.
It's either..or , so we add .