SOS 101 Lecture Notes - Lecture 5: Natural Number
Document Summary
Discrete variable: one for which the values the variables can take is restricted to an integer or whole or. Continuous variable: one whose value can be any number between its maximum and minimum value: 1. 23, 43. 6719. Systematically recording observations: personal observations, surveys, web-crawling, experiments, satellites, census, etc, examples of data, population census, noaa"s recording of co2 in the atmosphere in mauna loa. Independent: controlled or manipulated by the researcher: causes a change in the dependent variable, x-axis, dependent: the variable being measured, y-axis, assumes casual connection from independent variable to dependent variable. Interested in understanding what causes/determines change and what maintains stability. Identify change and stability by examining the behavior of variables across time and across space. Types of variability: across time, for the same or various entities, across a set of observations within the same time frame, cross-sectional. Sources of variability: random, several factors or forces.
