Find three cube roots for each of the following complex numbers. Leave your answers in trigonometric form.64i
Statistics is the science of collecting, classifying, presenting and interpreting data. Where Does Data Come From • Individuals o The objects described by a set of data. The objects can be people, animals or things. • Variable o Any characteristic of an individual. Variables can take different values for different individuals. Data Sources • Observational Study o Observes individuals and measures variables of interest but does not attempt to influence the responses. o The purpose of an observational study is to describe some group/situation. • Sample Survey o A sample survey is a type of observational study in which a sample is selected
