Chapter 1 Flashcards
What is statistics
Collecting and summarizing data
What is a population
The entire group to be studied
What is a sample
A subset of a population
What is descriptive statistics
Numerical summary of a Sample
What is inferential statistics
Generalizing-Applying a sample to a population
Has an estimate of reliability
What is a parameter
Numerical summary of a population
What are the 4 steps of statistics
- What is question to be answered
- Collect data
- Describe the data
- Perform analysis
What is a variable
A characteristic of population to be studied
What are qualitative variables
Classification based on attributes
What are quantitative variables
Data that can have arithmetic applied
What is an approach
How you plan on solving a problem
What are discrete variables
countable, finite
what are continuous variables
not countable, finite
what are the four ways to quantify data
nominal, ordinal, ratio, sequential
What is a response variable
An outcome