OpenStax, Algebra and Trigonometry 2e §13.7 Probability · Example 6 · Probability · Counting & chance
Using the Complement Rule to Calculate Probabilities
Two six-sided number cubes are rolled.
ⓐFind the probability that the sum of the numbers rolled is less than or equal to 3.
ⓑFind the probability that the sum of the numbers rolled is greater than 3.
OpenStax, Algebra and Trigonometry 2e · §13.7 Probability · Example 6
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