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Bivariate Data, Equations, and Graphs

8th Grade Math - Algebra
Across
Y
The spread of the data (Max. - Min.)
(a,0) or value of "x" when y = 0
Y = mx + b
X
Middle value in a set of data.
Values or observations that can be measured. And these numbers can be placed in ascending or descending order.
Mathematical average.
A two-way table of counts organizes data about two categorical variables. Values of the row variable label the rows that run across the table, and values of the column variable label the columns that run down the table.
Down
Rise/Run or m = (y2-y1)/(x2-x1)
(0,b) or b = initial value at t = 0.
Variables that measure characteristics using “words” that represent possible responses within a given category.
Pattern of two variables where the rate of chance is constant.
is measured, collected and reported, and analyzed, whereupon it can be visualized using graphs, images or other analysis tools.
a data point that is much higher or much lower than the values that could be normally expected for the distribution
The data value that occurs most often.
Data for two variables (usually two types of related data).
is a straight line that best represents the data on a scatter plot. This line may pass through some of the points, none of the points, or all of the points.
A graph used to explore the relationship between two variables.