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ISEE Lower Level
Mathematics Achievement

Probability of Two Red Marbles

Very Hard Data Analysis And Probability Basic Probability

A box contains 10 marbles: 4 red, 3 blue, and 3 green. You choose one marble at random, note its color, and then return it to the box before drawing another marble. What is the probability of drawing two marbles in a row, both being red?

To solve this, consider the total number of marbles and how you can calculate the probability of each draw.

Hint

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