A box contains 18
green marbles and 5
white marbles. If the first marble chosen was a green marble, what is the probability of choosing, without replacement, another green marble? Express your answer as a fraction or a decimal number rounded to four decimal places.
The probability of choosing a green marble on the first draw is 18/23.
After the first green marble is drawn, there will be 17 green marbles remaining and a total of 22 marbles left in the box.
Therefore, the probability of choosing another green marble on the second draw is:
17/22 ≈ 0.7727
So, the probability of choosing another green marble after the first green marble is drawn is approximately 0.7727.