Algebra 1 Topic 3 Vocabulary

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19 Terms

1
negative correlation
a relationship between two variables in which one variable increases when the other decreases
2
positive correlation
a relationship between two variables in which both variables either increase or decrease together
3
trend line
a line on a scatter plot that helps show the correlation between data sets more clearly
4
causation
A cause and effect relationship in which one variable controls the changes in another variable.
5
correlation coefficient
a statistical index of the relationship between two things (from -1 to +1)
6
extrapolation
estimating a value outside the range of measured data
7
interpolation
estimating a value within the range of measured data
8
line of best fit
the most accurate trend line on a scatter plot showing the relationship between two sets of data
9
linear regression
defines a line of best fit for correlational data that can be used as a prediction equation
10
bivariate data set
consists of observations on two variables made on individuals in a sample or population
11
continuous
domain includes all real numbers
12
discrete
domain consists of just whole numbers or integers
13
domain
the set of inputs
14
function
an input-output relationship that has exactly one output for each input
15
one-to-one
a relationship wherein each point in a set of points is mapped to exactly one other point
16
range
the set of outputs
17
relation
a set of ordered pairs
18
function notation
the notation used to describe a function
19
linear function
a function whose graph is a line