Question

A bag with 10 marbles has 2 yellow marbles, 4 blue marbles, and 4 red marbles. What is the probabillity that it chosen at random and is yellow?

Answer 1

`Probability=0.2`

Explanation:

Step 1: List the given information

`Total\ Marbles = 10`

`Yellow\ Marbles = 2`

`Blue\ Marbles = 4`

`Red\ Marbles = 4`

Step 2: Determine the probability of choosing yellow

`Probability=(Yellow\ Marbles)/(Total\ Marbles)`

`Probability=(2)/(10)`

`Probability=(1)/(5)`

`Probability=0.2`

Answer:
`Probability=0.2`

Answer 2

1/5 = 0.2 = 20%

Explanation:

Given:

• Yellow marbles = 2
• Blue marbles = 4
• Red marbles = 4
• Total marbles = 10

`\sf Probability\:of\:an\:event\:occurring = (Number\:of\:ways\:it\:can\:occur)/(Total\:number\:of\:possible\:outcomes)`

`\implies \sf P(yellow) = (2)/(10)=\frac15`

This can also be written as 0.2 or 20%