Grade 7 Math Sample Question 2

Danny rolls two number cubes (dice), one red and one blue. What is
the probability that he will roll a 2 on the red cube and a 6 on the
blue cube?

A) 1/6

B) 2/15

C) 1/18

D) 1/36 (Correct Answer)

Explanation:
The probability of both events happening is the product of the probabilities of each event happening individually. The probability of rolling a 2 on the red cube is 1/6. The probability of rolling a 6 on the blue cube is 1/6. The probability of both events happening is 1/6 x 1/6 = 1/36.

Related Common Core State Standard: 7.SP.6

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Ray Shawn

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