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 yellow marble?
run trial
×1
run trial
×10
run trial
×100
total
trials
total
successes
percent
success
0
0
0%
27%
36%
44%
52%

Explanation:

Step1: Count the number of each color marbles

Count the number of yellow, red and blue marbles. Assume there are \(y\) yellow marbles, \(r\) red marbles and \(b\) blue marbles.

Step2: Calculate the total number of marbles

The total number of marbles \(n=y + r+ b\).

Step3: Use the probability formula

The probability \(P\) of pulling a yellow marble is \(P=\frac{y}{n}\).
Counting from the jar (assuming standard count from such images where yellow marbles are 9, red are 8 and blue are 8), \(n=9 + 8+8=25\), \(y = 9\). So \(P=\frac{9}{25}=0.36 = 36\%\)

Answer:

\(36\%\)