GEOG 2006 Study Guide - F-Test, Squared Deviations From The Mean, Empirical Probability
Document Summary
Geog 2006 statistics exam review: describes variables, provides a summary of a set of measurements, central tendency, dispersion, distribution shape. Data types: make a generalization about a statistical population by using data from a sample in descriptive (example: opinion polls, experiments, identify if events coincide, explore the association between variables and possibly make predictions. Continuous drawn from an infinite number (ratio) Interval continuous, intervals are meaningful, arbitrary zero. Ration as for interval but with meaningful zero. Accuracy how close is the measurement to the true value: inaccuracy from a bias or systematic error calibration of machine. Precision agreement of repeated measurements with each other. (repeatable/reproducible: imprecision caused by random error, numerical precision is how many significant figures there are, measurement resolution is how refined the scale of measurement is. Measurement uncertainty last significant digit is uncertain. There is always error 2 flavours: systematic (aka a bias, random (sometimes referred to as noise or random variability)
