Andrew M. answered • 01/21/17

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Hello Massa.

A probability model is defined by its sample space, events within the sample space, and probabilities.

The sample space is the set of all possible out comes and for the above is:

**S = {red, blue, green}**.

An event is a subset of the sample space,and for the above it is picking one random marble:

**E1 = red, E2 = blue, E3 = green**.

Finally, the probabilities of the events are:

**P(red) = 3/10, P(blue) = 2/10, and P(green) =5/10**.