<h3>
Answer: 3/76</h3>
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Explanation:
There are 5 green marbles.
There are 3+5+7+1+4 = 20 marbles total.
The fraction 5/20 = 1/4 represents the probability of picking green.
After that marble is selected, it is not put back (i.e. "no replacement").
This means we now have 20-1 = 19 marbles left.
The probability of getting red on the second selection is 3/19 because we have 3 red out of 19 leftover.
The last step is to multiply the fractions mentioned:
(1/4)*(3/19) = (1*3)/(4*19) = 3/76
