The probability of drawing a green marble in the first trial is 2/10, or 1/5.
Since the first marble is not replaced, there are now 9 marbles in the bag, 2 of which are green. Therefore, the probability of drawing another green marble in the second trial is 2/9.
Thus, the expression for the probability of drawing green marbles in both trials is:
(1/5) x (2/9) = 2/45
The table below shows the number of marbles of different colors in a bag, pink, five blue, two green, three draws a marble from the back randomly without looking she then draws another marble from the back without replacing the first one which expression shows a probability of drawing green marbles in both the trials
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