SOCIOL 2Z03 Lecture Notes - Probability Theory, Statistical Parameter, Sampling Distribution
18 Jun 2013
School
Department
Course
Professor
Document Summary
Probability theory is a branch of mathematics: this is basis for sampling techniques that produce representative samples. Parameter summary description of a given variable in a population i. e mean(summary description) individual income of secretaries at mcmaster (population) sampling distribution basis for estimating the parameters of a population: 1. From one case to multiple cases one case will give an estimate of the population paraments. Y axis number of secretaries, and x- axis income (in thousands) Graph 1 will give us a normal curve: 2. One sample would give us an estimate of the population parameter if it is chosen randomly. If we get more samples, it will give us the same or slightly different estimates of the population parameters. Every time we draw a sample, if we are choosing the sample randomly the results should be the same maybe slight different but according to probability theory should be very similar results.
