Mr. Lim has a bag with some marbles colored red, yellow, green, blue, and white. The marbles are identical in number. Mr. Lim will conduct a chance experiment by randomly drawing a marble from the bag and then returning it after noting the color. Based on 50 trials, how many green marbles will Mr. Lim expect to pick? (1 point)
Based on the given information, we know that all the marbles are identical in number and there are a total of 5 colors. Since Mr. Lim will be conducting 50 trials, the expected number of green marbles he will pick can be calculated using the principle of probability.
Since there are 5 colors and all marbles are identical in number, the probability of picking a green marble in each trial is 1/5.
Therefore, the expected number of green marbles Mr. Lim will pick in 50 trials can be calculated by multiplying the probability of picking a green marble by the total number of trials:
Expected number of green marbles = (1/5) * 50 = 10
Therefore, Mr. Lim can expect to pick 10 green marbles in 50 trials.