Scatter Plot and Trend Line VOCAB

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PLAY
Causation
when a change in one quantity causes a change in another
Correlation coefficient
a number r from -1 to 1 that tells you how closely the equation models the data set
Extrapolation
predicting a value outside of the range of known values
Interpolation
estimating a value between two known values
Line of Best Fit
a trend line that shows the relationship between two sets of data most accurately
Negative Correlation
when y tends to decrease as x increases in a relationship between two sets of data
No Correlation
when two sets of data are not related
Positive Correlation
when y tends to increase as x increases in a relationship between two sets of data
Scatter Plot
a graph that relates two different sets of data by displaying them as ordered pairs
Trend Line
a line on a scatter plot,drawn near the points, that shows a correlation
Implication
a conclusion that follows from previously stated ideas or reasoning without being explicitly stated
Representation
a way to display or describe information
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