Question

A jar contains 20 yellow marbles, 55 green marbles, and 25 purple marbles. You pick one marble from the jar at random. What is the theoretical probability of picking a purple marble?

Answer 1

25%
This is the correct answer for if you add them up it is 100% so they all vary.

Answer 2

Theoretical Probability of picking a purple marble from jar is
`(1)/(4)`

Explanation:

Given: 20 yellow marbles , 55 green marbles and 25 purple marbles in jar.

To find: Theoretical Probability of picking a purple marble

`Theoretical\,Probability=(No.\,of\,favourale\,outcome)/(Total\,No.\,of\,outcome)`

No of Yellow Marble = 20

No of Green Marble = 55

No of Purple Marble = 25

⇒ Total No. of marble = 20 + 55 + 25 = 100

Let E be the event of picking a Purple Marble from jar

⇒
`Probability\,(Event\,E)=(25)/(100)`

`Probability=(1)/(4)`

Therefore, Theoretical Probability of picking a purple marble from jar is
`(1)/(4)`