Prentice Hall Algebra 2

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  1. Meteorology The table displays the number of hurricanes in the Atlantic Ocean from 1992 to 2006. What are the mean and standard deviation?
Year 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Number 4 4 3 11 10 3 10 8 8 9 4 7 9 14 5

SOURCE: National Hurricane Center

In a data list, every value falls within some number of standard deviations of the mean. For example, if the mean is 50 and the standard deviation is 10, then a value x with 40 less than or equal to x less than or equal to 60  is within one standard deviation of the mean.


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Table of Contents

Prentice Hall Algebra 2 Chapter 1 Expressions, Equations, and Inequalities Chapter 2 Functions, Equations, and Graphs Chapter 3 Linear Systems Chapter 4 Quadratic Functions and Equations Chapter 5 Polynomials and Polynomial Functions Chapter 6 Radical Functions and Rational Exponents Chapter 7 Exponential and Logarithmic Functions Chapter 8 Rational Functions Chapter 9 Sequences and Series Chapter 10 Quadratic Relations and Conic Sections Chapter 11 Probability and Statistics Chapter 12 Matrices Chapter 13 Periodic Functions and Trigonometry Chapter 14 Trigonometric Identities and Equations Skills Handbook English/Spanish Illustrated Glossary Selected Answers Index Acknowledgments