Respuesta :

Answer:

0.7

Step-by-step explanation:

Total marbles: 10

P(red or green) = 7/10 = 0.7

Answer:

7/10

Step-by-step explanation:

3 red marbles, 2 blue, 1 yellow and 4 green = 10 marbles

red or green = 3+4 = 7 marbles

P(red or green) = red or green / total

                          = 7/10