A veterinarian is visited by many pets and their owners each day. Before the doctor attends to each pet, an assistant records information including the type, age, weight, and height of each pet. Which of the variables is a categorical variable?

A categorical variable describes a group or label rather than a numerical measurement. Pet type, such as dog or cat, is a category. Age, weight, and height are measured numerically, so the categorical variable is type (choice A).

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