Question

What is the theoretical probability of randomly choosing a blue marble from a bag of 5 blue marbles, 8 red marbles, and 7 yellow marbles?

Answer 1

25%

Explanation:

There's a total of 5+8+7 = 20 marbles.

The chance of picking a blue marble is
`(5)/(20) =(1)/(4) =0.25=`25%, as there's 5 blue marbles and a total of 20.