How many red marbles should be added to make this probability 1/3? A - ProProfs Discuss

# How many red marbles should be added to make this probability 1/3? A box contains 36 marbles. If a marble is picked at random, the probability of being red is 2/9.

This question is part of Conditional Probability Quiz
Asked by Gweehn, Last updated: Jun 24, 2019

#### E. Barnes

But Can you play this?

E. BarnesProfessional Gamer, Professional Gamer, Washington
Professional Gamer, Professional Gamer, Washington

The correct answer to this question is 6. This type of question would be found on a math test, related to conditional probability. Due to its difficulty, it could also be found on an IQ test to test one's intellect, as well as an SAT which a high schooler takes before college.

This probability measures the probability that something will happen if another event has already happened. Conditional probability is a critical theory, but it can be challenging to interpret and understand. It is vital for one solving the probability to interpret it correctly to ensure they get the right answer.

Gweehn