MIDTERM 01 - Statistics Flashcards
The science of collecting, analyzing, presenting, and interpreting data
Statistics
Are the facts and figures that are collected, analyzed, and summarized for presentation and interpretation
Data
Measures either how much or how many of something
Quantitative data
Provide labels, or names, for categories of like items
Qualitative data
Is a method for organizing and summarizing data
Descriptive statistics
Descriptive value for a population
Parameter
Descriptive value for a sample
Statistic
Is a method for using sample data to make general conclusions about populations
Inferential statistics
The entire group of individuals
Population
Is selected to represent the population in a research study
Sample
Is any characteristic, number, or quantity that can be measured or counted
Variable
Consists of indivisible categories
Discrete variable
Are infinitely divisible into whatever units a researcher may choose
Continuous variable
The process of measuring a variable requires a set of categories called __________
Levels of measurement
Data created by assigning observations into various independent categories
Nominal