Find the probability of the event if a single choice is made from a bag.
-A bag contains 8 red marbles, 3 blue marbles, and 1 green marble. What is the probability of choosing a marble that is not blue when one marble is drawn from the bag?
A) $\frac { 4 } { 3 }$
B) $\frac { 3 } { 4 }$
C)9
D) $\frac { 1 } { 4 }$

Question

Quizplus · Accepted Answer

The total number of marbles is 8 red + 3 blue + 1 green = 12 marbles. The probability of not choosing a blue marble is the probability of choosing either a red or a green marble, which is 8 red + 1 green = 9 marbles out of 12. Therefore, the probability is $\frac{9}{12}$, which simplifies to $\frac{3}{4}$.

Find the Probability of the Event If a Single Choice 43\frac { 4 } { 3 }34​

Find the Probability of the Event If a Single Choice $\frac { 4 } { 3 }$