a bag contains 5 blue, 4 red, 9 white and 6 green marbles. If a marble is drawn at random and replaced 100 times, how many times can you expect to draw a green marble?

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Hint: the expected number of times you draw green = the probability of drawing green on one draw times the total number of draws. So to start - if you draw one marble can you tell us the probability that the marble would be green?