Abag contains 10 identical balls numbered from 1 to 10. what is the probability that a person reaches into the bag and randomly selects a ball with a number that is even?

1 out of every 2 draws

The answer to your question would be 50%, due to the reason that 2,4,6,8,10 are all even. Which means 1,3,5,7,9 are odd. The problem is 5/10 or 1/2, which would equal up to 50%. 

Ithink the answer is b.