Answer
0.079
Work Step by Step
Total outcomes $6\times6\times6=216$
There are 16 outcomes (115,124,133,142,151,214,223,232,241,313,322,331,412,421,511) for a sum of 7
The probability of getting a sum of 7 is $p=17/216=0.079$
Elementary Statistics: A Step-by-Step Approach with Formula Card 9th Edition
by Bluman, Allan
Published by
McGraw-Hill Education
ISBN 10:
0078136334
ISBN 13:
978-0-07813-633-7
Chapter 4 - Probability and Counting Rules - 4-5 Probability and Counting Rules - Exercises 4-5 - Page 246: 13
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