A bag has 3 red marbles and 1 blue marble. What is the probability of drawing a blue marble?

Q: What will my child learn in "Describe simple probability"?

Probability compares the outcomes you want to all equally likely outcomes. This 5th Grade Math lesson builds the skill Use mean, median, mode, range, and simple probability with a concept card and practice.

Q: What grade level is "Describe simple probability" for?

"Describe simple probability" is a 5th Grade Math lesson in the Data and chance unit, designed for students around ages 10-11.

Q: How many practice questions are in this lesson?

This lesson includes 40 practice questions with instant feedback. Guests can try a few for free, and signed-in learners get the full adaptive set that adjusts to their level.

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Sparq is a safe AI tutor that gives kid-friendly hints and explains Describe simple probability step by step, helping students learn without just giving away the answer.

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No account is needed to start — guests can try this 5th Grade Math lesson for free. Signing in saves progress, unlocks more practice questions, and tracks mastery.

Question

A bag has 3 red marbles and 1 blue marble. What is the probability of drawing a blue marble?

Accepted Answer

1/4