Chapter 2 Key Terms Flashcards
Statistics
The collection and classification of data that are in the form of numbers
Mean
Average of given values
Distribution
Relative arrangement of the members of a statistical population.
Probability
The chance that something will happen
Sample
a group of individuals or events selected to represent your population
Risk
Probability of unwanted outcome
Model
Representations of objects
Conceptual Model
A verbal or graphical explanation of how a system works or is organized
Mathematical Model
One or more equations that represent how a system or process works
Values
Principles or standards that we consider important
Decision Making Models
Conceptual model that provides a systematic process for making decisions
Observation
A piece of information you gather using your senses
Hypothesis
Testable idea or explanation that leads to a scientific investigation
Prediction
A logical statement about what will happen if the hypothesis is supported
Experiment
A procedure designed to test a hypothesis under control conditions
Variable
The factor of intrest
Experimental Group
The group that receives the experimental treatment
Control Group
The group that does not recieve the experimental treatment
Data
The information scientists gather that is often numerical
Correlation
Association between two or more events
