Tommy has 30 marbles in a bag. If 1/2 are blue, 1/3 are red, and 1/6 are yellow and he draws out a marble, records the color, returns it to the bag and repeats the process 10 times,
a) approximately how many times should he expect to draw a blue marble?
b) Suppose Tommy did the same experiment 100 times, approximately how many times would Tommy expect to draw a blue marble?
c) Which of the two approximations is likely to be the most accurate? Justify your answer.