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AP Statistics Vocabulary Review

Across
A straight line that describes how a variable y changes as a variable x changes.
A part of the population that we actually examine in order to gather information.
The statement being tested in a test of significance.
A measure of how far the observed counts in a two-way table are from the expected counts.
An entire group of individuals
(SRS) A group of people chosen in a certain way so that every individual has an equal chance of selection.
We accept Ho, when it's actually false.
The midpoint of a distribution
A curve that is always on or above the horizontal axis, and has an area of exactly 1 underneath it.
Measures the direction and strength of the linear relationship between two quantitative variables.
Down
A variable that measures the outcome of a study.
1) Estimate +/- margin of error 2) Confidence Level
Systematically favors certain outcomes.
Standardized Value of an observation
An individual observation that falls outside the overall pattern of data.
Any characteristic of an object that is being described by a set of data.
Two events in which knowing that one occurs doesn't change the probability that the other occurs. These events are...
We reject Ho, when it's actually true.
Tells us what values the variable takes and how often it takes them.
An experiment in which neither the subjects nor the observers know which treatment was given.
A number that describes a sample.
A study that deliberately imposes some treatment on individuals in order to observe their responses.
A number that describes the population.