In rolling 2 dice, a. what is the probability of an event of getting a sum of 8 and 9?  b.  what is the probability of an event of getting a sum of 8 or 9?

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
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Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 8ECP: In Example 8, what is the probability that an employee chosen at random has 30 or more years of...
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In rolling 2 dice,

a. what is the probability of an event of getting a sum of 8 and 9? 

b.  what is the probability of an event of getting a sum of 8 or 9? 

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