Section 1-1

This document provides information about accidental deaths in the United States, including: 1. The leading causes of accidental death are motor vehicle accidents (47.8%), falls (14.8%), and poisoning (8.9%). 2. It discusses key concepts for understanding data such as variables, populations, samples, surveys, and random samples. 3. An example is given of a physician taking a biopsy to check for cancerous growth, where the variable is the condition of the growth, the population is the entire growth, and the sample is the portion taken for the biopsy.