Answer
0.75
Work Step by Step
We can find the z-score by applying the formula: $z=\frac{x-\bar x}{\sigma}=\frac{80-77}{4}=0.75$
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 11 Data Analysis and Statistics - Standardized Test Practice - Gridded Answer - Page 791: 10
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