August 2015
Beginner
528 pages
16h
English
Content preview from U Can: Statistics For Dummies
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Part V
Sometimes it’s not feasible or even possible to get a list of everyone in a population and randomly sample from that. Go to www.dummies.com/extras/ucanstatistics to read about other valid ways to sample on a budget.
In this part …
Learn the good and the bad of conducting surveys, and what they can and can’t tell you based on how the data was gathered.
Design randomized experiments to collect data in the best way possible.
Explore the predictive linear relationship between two variables and distinguish between correlation and causation.
Classify the connection between categorical variables using two-way tables.
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