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?

Respuesta :

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

Answer:

Theoretical Probability of picking a purple marble from jar is [tex]\frac{1}{4}[/tex]

Step-by-step explanation:

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

To find: Theoretical Probability of picking a purple marble

[tex]Theoretical\,Probability=\frac{No.\,of\,favourale\,outcome}{Total\,No.\,of\,outcome}[/tex]

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

⇒ [tex]Probability\,(Event\,E)=\frac{25}{100}[/tex]

[tex]Probability=\frac{1}{4}[/tex]

Therefore, Theoretical Probability of picking a purple marble from jar is [tex]\frac{1}{4}[/tex]