Since the marbles are identical in number and Mr. Lim is conducting a random experiment with replacement, the probability of picking a green marble in each trial is 1/5.
So, the expected number of green marbles picked in 50 trials can be calculated as:
Expected number of green marbles = Probability of picking a green marble x Number of trials
Expected number of green marbles = (1/5) x 50
Expected number of green marbles = 10
Therefore, Mr. Lim can expect to pick 10 green marbles in 50 trials.
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 answer