Explanation:
To find the experimental probability of drawing a white marble, we need to divide the number of times Nan drew a white marble by the total number of marbles she drew. Looking at the chart, we can see that Nan drew 5 white marbles out of a total of 10 marbles. Therefore, the experimental probability of drawing a white marble is:
number of white marbles / total number of marbles = 5/10 = 1/2 = 0.5
So the experimental probability of drawing a white marble is 0.5 or 50%.