Question

What's the probability of getting an odd number and a head when rolling a die and then tossing a coin?

Answer 1

P(getting odd number)  = 3/6 = 1/2     ( as there are 3 odds and 3 evens on a die).

P(head) = 1/2 

these are multiplied as the 2 events are independent :-  
Answer is 1/2 * 1/2 = 1/4

Answer 2

If you are on apex, the answer is 1/4