Answer:
a. Rolling an odd number (not even): rolling a 1, 3 or 5
b. 50%
Step-by-step explanation:
There are 6 possible outcomes; 1, 2, 3, 4, 5 and 6.
Out of these there are 3 odd numbers (not even) and 3 even numbers
so 3 (odd numbers) / 6 (possible outcomes) = 1/2 = 50%