#### Answer

$\frac{4}{7}$

#### Work Step by Step

There are 7 marbles in the bag so there are 7 possible outcomes if one marble is selected.
There are 3 green and 1 red marbles, so the probability of selecting a green or red marble is 4 out of 7.

Published by
Pearson

ISBN 10:
0321955048

ISBN 13:
978-0-32195-504-3

$\frac{4}{7}$

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