Answer:

Step-by-step explanation:
Since there are a total of 4 colors, and there are 5 of each colors, the total marbles in the bad would be;
5 x 4 = 20
If a color is selected at random the probability would be

our part is 5
our whole is 20
so the probability would be;
or
when reduced
Hope this helps!
Answer:
1:1
Step-by-step explanation:
It's thirteen because it is too large.
There are two sides in a coin so the chance of getting tails is 1/2, which would be 0.5.
I'm not sure tho.