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# Solution: In Exercises 2328, determine whether the matrix is symmetric, orthogonal

ISBN: 9780618783762 397

## Solution for problem 25 Chapter 7

Elementary Linear Algebra | 6th Edition

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Elementary Linear Algebra | 6th Edition

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Problem 25

In Exercises 2328, determine whether the matrix is symmetric, orthogonal, both, or neither.

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Patrece Savino Math 109 Professor Rouse 1.1 Individuals and Variables ­ Data: contains information about a group of individuals and is organized in variables o Individuals: objects described by the set of data; people, animals, or things o Variables: characteristics or information on the individual; different values for different individuals ­ Ask following questions when planning a statistical study: o Who How many o What Variables Units of measurement o Where o When o Why Purpose ­ Categorical variable: individual is grouped or categorized ­ Quantitative variable: numeric values applied for when arithmetic operations make sense (adding

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