Question

A bag contains a total of 25 marbles. Five of the marbles are blue, 3 are red, 8 are green, and 9 are white. If a marble is drawn from the bag and then replaced 50 times, about how many times would a green marble be drawn?
A. 4
B. 8
C. 16
D. 24

Answer 1

There is an 8/25 chance of drawing a green marble, and since the marbles aee being drawn 50 times, then you have to muliply 8 by 2 to get 16/50. Since the marble is replaced after it’s drawn, the chances of drawing a green marble stay the same with each new pick, so 16/50 probability means that about 16 marbles will be drawn. (C)