Answer:
Event B has the smallest probability and Even C has the greatest probability
Explanation:
There are more odd number greater than 50 than odd numbers less than 20
So the probability of selecting an odd number greater than 50 is greater than the probability of selecting an odd numbers less than 20
There are more even numbers than odd numbers greater than 50
So the probability of selecting an even number is greater than the probability of selecting an odd number greater than 50
Wrap up: Event B has the smallest probability and Even C has the greatest probability