Respuesta :
The probability would be 1/3 because 3 marbles out of 9 marbles are red.
Answer:
Let's see how many marbles there are in total;
1 + 2 + 3 + 3
= 9 marbles in total.
Our of the 9 marbles, 3 are red.
So the probability of selecting a red marble is;
3/9 which simplifies to 1/3 or 33%(in percentages).