Flashcards in Chapter One Deck (19):
What is Statistics?
The science of collecting, analyzing, and drawing conclusions from data
Why Should one Study Statistics?
1. To be informed
2. To make informed judgement
3. To evaluate decisions that affect your life
Is universal, allows us to distinguish between usual and unusual values
The entire collection of individuals or objects about which information is desired
Preformed to gather information about the entire population
A subset of the population, selected for study in some prescribed manner.
The method of organizing and summarizing data
Involves making generalizations from a sample to a population
Any characteristic whose value may change from individual or object to another.
The values for a variable from individual observations
Qualitative; identifies basic differentiating characteristics of the population
Quantitative; Observations or measurements take on numerical values
Isolated points along a number line; usually counts of items
Variable that can be any value in a given interval, usually measurements of something
Data that describes a single characteristics of the population
Data that describes two characteristics of the population
Data that describes more than two characteristics of the population
When to use a Bar Graph?