Step 1: Problem
A bag contains 12 grey and 24 white marbles. A marble is drawn at random what is the theoretical probability as a decimal of drawing a gray marble round guess my to the nearest hundredth​.
Step 2: Concept
[tex]\text{Probability of any event = }\frac{n\text{ umber of required outcome}}{n\text{ umber of possible outcome}}[/tex]Step 3: Method
Given data
Grey = 12
White = 24
Total = 36
Total number of possible outcome = 36
Required outcome ( Gray marble ) = 12
[tex]\begin{gathered} \text{Probability of drawing a grey marble = }\frac{12}{36} \\ =\text{ }\frac{1}{3} \\ =\text{ 0.333333333} \\ =\text{ 0.33} \end{gathered}[/tex]Step 4: Final answer
= 0.33
