Question

a bag contains 12 gray marbles 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

Answer 1

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

`\text{Probability of any event = }\frac{n\text{ umber of required outcome}}{n\text{ umber of possible outcome}}`

Step 3: Method

Given data

Grey = 12

White = 24

Total = 36

Total number of possible outcome = 36

Required outcome ( Gray marble ) = 12

`\begin{gathered} \text{Probability of drawing a grey marble = }(12)/(36) \\ =\text{ }(1)/(3) \\ =\text{ 0.333333333} \\ =\text{ 0.33} \end{gathered}`

Step 4: Final answer

= 0.33