Probability Flashcards
Conditional Probability / Compound Event
occurs when two or more simple events are performed together so that one event happens and so does another.
Experimental Probability / Empirical Probability
what actually occurs during a simulation or trial
Experimental Investigation
Researchers treat sample members and monitor their responses. Shows correlation.
Sample Space
a list or set of all possible outcomes
Independent Events
two or more events that have no influence on each other.
Dependent Events
the outcome of one event affects the outcome of the second.
Margin of Error (in stats)
a number that represents how far above or below the actual mean may be from the experimental mean in a study
Probability of 0
an impossible outcome
Probability of 1
a guaranteed outcome
Control Group
a group of specimens in an experiment to which no change is made; does not receive the experimental treatment
In an experiment
Observational Study
researchers observe and record data for the subjects in the sample (they do NOT assign treatments). Can only show correlation.
Placebo
something that looks like the actual treatment but designed to have no effect on the subject
Experimental Group
a group of specimens in an experiment to which a change is made; receives the experimental treatment
Simulation
A method in which a computer or calculator generates a large amount of data in a short period of time
Population (in stats)
all members of a defined group
