Joint probabilities :

1- Suppose I roll a fair six-sided die and flip a fair coin.

What is the probability that...

i. I roll a 3 and the coin comes up heads?

ii. I roll an odd number and the coin comes up heads?

iii. I roll an odd number, or the coin comes up heads (or both)?

c. What are the formulas used for i, ii, and iii?

please explain in details step by step to fully understand. thanks .