Question

A bag contains five red marbles and three green marbles. What is the probability of selecting one green marble from the bag?

(Hint: the answer is a fraction...)

Answer 1

`\boxed {\boxed {\sf P(green )=(3 )/(8)}}`

Explanation:

Probability tells us how likely something is to happen. It's found by dividing the number of favorable outcomes by the total outcomes.

`P=(number \ of \ favorable \ outcomes)/(total \ outcomes)`

Since we are trying to find the probability of selecting a green marble, that is the favorable outcome. There are 3 green marbles, so there are 3 favorable outcomes.

There are 5 red marbles in addition to the 3 green marbles. This means there are 8 total outcomes (5+3=8).

• favorable outcomes = 3
• total outcomes =8

`P(green )=(3 )/(8)`

This fraction cannot be simplified further, so it is the answer.

The probability of selecting a green marble is 3/8