Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 10 Counting Methods and Probability - 10.4 Find Probabilities of Disjoint and Overlapping Events - 10.4 Exercises - Skill Practice - Page 711: 37



Work Step by Step

The probability of the given event has a complement of less than or equal to 4. (if you don't roll a 5 or more, you roll a 4 or less) Thus, the probability we roll a 4 or less is the favorable outcome $[(1,1)(2,1)(1,2)(3,1)(2,2)(1,3)]$ over the sample space of 36 events. $6/36 =1/6$ We are finding the complement or $1-1/6=\boxed {5/6}$
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