2018 Period 3 Unit 1 Review (Stats) by Karen Aguilar https://padlet.com/kaguilar3/ymw0lsv91z29 Made with serendipity en-us 2018-01-18 17:56:35 UTC 2018-01-19 18:10:49 UTC hello@padlet.com Normal distribution goes from 68% to 95% to 99.7% 42092 https://padlet.com/kaguilar3/ymw0lsv91z29/wish/222887670 2018-01-19 18:02:50 UTC https://padlet.com/kaguilar3/ymw0lsv91z29/wish/222887670 Types of sampling techniques 42092 https://padlet.com/kaguilar3/ymw0lsv91z29/wish/222888961 Random Sampling: When a sample is chosen out of every single element of a population randomly.
Systematic Sampling: When every element in a population is lined up and counted and every Nth number is used for the sample
Convenience sampling: Use only the data that is immediately available.
Cluster sampling: Dividing the population into groups (geographically) and randomly select groups for the sample
Stratified sampling: The population is divided into groups using characteristics and a sample is chosen from all groups using random, systematic or convenience methods
Voluntary response: Only use those that volunteer for the sample.]]> 2018-01-19 18:06:07 UTC https://padlet.com/kaguilar3/ymw0lsv91z29/wish/222888961 Studies https://padlet.com/kaguilar3/ymw0lsv91z29/wish/222889706 Observational- No action taken/simply watching
Survey- Asking people for opinions
Experiment- Changing a variable and then seeing an outcome]]> 2018-01-19 18:07:41 UTC https://padlet.com/kaguilar3/ymw0lsv91z29/wish/222889706