Crash Course Statistics 1: What is Statistics?
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Why can polls and surveys be unreliable?
1. people can answer dishonestly 2. they can be ashamed of giving the the right answer 3. none of the answers fit them 4. they don't know the answers
Statistics
facts about, or summaries of data
Inferential Statistics
numerical data that allow one to generalize or to infer from sample data the probability of something being true of a population
Proxy
something that is related to what we want to measure, but isn't exactly what we want to measure
Descriptive Statistics
statistics that summarize the data collected in a study
Field of Statistics
the study and practice of collecting and analyzing data
