Question

You randomly select one of the marbles from the jar shown below. What is the probability that you will select a red marble? R marbles red, G marbles are green, and B marbles are blue.3/101/21/53/7

Answer 1

In the jar, we have:

• # of R marbles = 3,

,

• # of G marbles = 2,

,

• # of B marbles = 5,

,

• total # of marbles = 3 + 2 + 5 = 10.

The probability of randomly selecting a red marble is:

`P(\text{red})=\frac{\#\text{ of R marbles}}{\text{total \# of marbles}}=(3)/(10).`

Answer

3/10