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

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