Question

you roll 1 die. find the probability of the number you end up rolling a 3 or 5.

Answer 1

The probability of rolling any number from 1 to 6 is 1/6.
The events 'roll a 3' and 'roll a 5' are mutuaslly exclusive therefore the probability of rolling a 3 or 5 is the sum of the individual probabilities:
\[P(3\ or\ 5)=\frac{1}{6}+\frac{1}{6}=?\]

Answer 2

mutually*