Introduction to Statistics

Consist only of members of the population that are easy to get

All individuals or instances were not equally likely to have been selected

mathematical or physical model to reproduce the conditions of a situation or process

a variable whose value depends on that of another.

numerical description of a SAMPLE characteristic

consists of numerical measurements or counts

Count or measure of part of a population

The science of collecting, organizing, analyzing & interpreting data in order to make decisions

Every member of the population has an equal chance of being selected

Treatment applied to part of the population

When the population falls into naturally occurring subgroups

researcher does not influence the responses

A sample in which each member of the population is assigned a number

harmless fake treatment that is made to look like the real treatment

Involves a sample to draw conclusions about a population

Collection of all outcomes, responses, measurements or counts that are of interest

Data arranged in order or ranked

Information coming from observations, counts, measurements or responses

Important for the sample to have members from each segment of the population

The process of randomly assigning subjects different treatment groups

Subset, or part of, a population

branch of statistics

implies "none"

range of numbers between two given numbers

refer to ways in which variables/numbers are defined and categorized

researcher deliberately applies a treatment before observing the repsonses

the entry is not an inherent zero

is a quantity that may change within the context of a mathematical problem or experiment

no treatment applied

numerical description of a POPULAR characteristic

The repetition of an experiment under the same or similar conditions

technique where the subjects do not know whether they are receiving a treatment or a placebo

data categorized using names, labels or qualities

Consist of attributes, labels or non numerical entries

likelihood of something happening or being the case

Variables that can only take on a finite number of values

experimenter nor the subjects know if the subjects are receiving a treatment or a placebo

the alteration of behavior by the subjects of a study due to their awareness of being observed

A count or measure of an entire population

experimenter cannot tell the difference between the effects of different factors on variable

added property that a zero entry is an inherent zero