Statistics/Glossary

This is a glossary of the book. P primary data Original data that have been collected specially for the purpose in mind. population Entire group being considered for data collection, that we want to draw conclusions about. EX: The population of the United States R Random variable A function that associates a specific and unique numerical value with each outcome of an experiment. (EX: X or Y) The outcome is denoted as lower case S sample a group of units taken from a larger group (the population). Used to draw conclusions of the larger group. EX: 30 people in a town in the US. secondary data Data that have been collected for another purpose and where we will use Statistical Method with the Primary Data. statistic A measure that is calculated from a sample of data. Statistical Independence They do not affect each other Z