500
Sally had a bag containing 5 marbles: 1 green, 1 yellow, 1 red, 1 black, and 1 blue. She randomly chose 1 marble out of the bag, recorded the color, and put the marble back. The table on the board shows the results of perfomring this experiment 100 times. If her results had been like the mathematical probabilities, how many more times would she have chosen a blue marble?
2