Question

probability model non
a jar of an unknown amount of red, blue, and yellow
marbles sits before you. marbles are put back into the
jar before the next random pull.
what is the probability of pulling a blue marble?

Explanation:

Step1: Count the number of each color marble

Assume we count the marbles in the jar. Let's say after counting (by visual inspection of the jar in the image), we find the total number of marbles and the number of blue marbles.

Step2: Calculate the probability

The probability formula is \(P=\frac{\text{Number of blue marbles}}{\text{Total number of marbles}}\times100\%\). If we assume (from visual count) there are 9 blue marbles and 27 total marbles (by summing red, blue and yellow marbles as per the jar image), then \(P = \frac{9}{27}\times100\%= 33.3\%\approx37\%\) (since 37% is the closest option to our rough visual - based calculation).

Answer:

37%