lecture18_2slides

lecture18_2slides - Statistics 528 - Lecture 18 Sampling...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Statistics 528 - Lecture 18 1 Statistics 528 - Lecture 18 Prof. Kate Calder 1 Sampling Distributions Sampling Distributions A statistic from a random sample or randomized experiment is a random variable . The probability distribution of the statistic is its sampling distribution . Population Distributions The population distribution of a variable is the distribution of its values for all members of the population. The population distribution is also the probability distribution of the variable when we choose one individual from the population at random. Statistics 528 - Lecture 18 Prof. Kate Calder 2 Sampling Distribution for Counts and Proportions Count (X) - number of occurrences of some outcome in a fixed number of observations. Sample Proportion - number of occurrences out of the number of observations. = X/n p ˆ
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Statistics 528 - Lecture 18 2 Statistics 528 - Lecture 18 Prof. Kate Calder 3 The Binomial Distribution The Binomial Setting 1. There are a fixed number n of observations.
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 4

lecture18_2slides - Statistics 528 - Lecture 18 Sampling...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online