Statistics
The Different Data Collection Methods
Observational,Survey,Experiment
Quantitative
Categorical Data
Outcome
the result of a single trail in a probability experiment
How do you right a factorial
N!
Expected Values
the same value as the mean and average
Statistics Is both
The science of uncertainty and the technology of extracting from data
Qualitative
Numerical Data
event
sample spacethe set of all possible outcomes of a probability experimenteventa subset of the sample space. It may consist of one or more outcomes.
Premunation
An ordered arrangement of objects.
Independent Variables
What your extracting data from
Data Is Not Only
Numerical
What your trying to get out of the population
Fundamental Counting Principle
f one event can occur in "m" ways and a second event can occur in "n" ways the number of ways the two events can occur in sequence is m x n
Combinations
is a selection of r objects from a group of n objects without regard to order and is denoted by nCr.
Dependent Variable
The data extracted
Statistics Is The Study Of How....
To collect organize, analyze and interpret numerical information and data
Theme
Classical probabilityused when each outcome in a sample space is equally likely to occurEmpirical probabilitybased on observations obtained from probability experiment
Discrete
Random variablerepresents a numerical value associated with each outcome of a probability experimentDiscreteIt has a finite or countable number of possible outcomes that can be listed
Population
3 Key Elements
Freedom from Bias, Freedom from confounding, and control of extraneous variables
Sample
The portion of the population
Law Of Large Numbers
as an experiment is repeated over and over, the empirical probability of an event approaches the theoretical (actual) probability of an event
Continuos
It has an uncountable number of possible outcomes represented by an interval on the number line
Individual
Each individual thing or person in the population