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Bivariate Data Unit

Statistics with Bivariate Data

TermDefinition
bivariate data data relating two quantitative variables that can be represented by a scatterplot
data information that is collected about people, events, or objects
discrete paired data data that involves only distinct values that are finite or countable
graph a visual representation of the relationships between data collected
linear relationship a relationship with a constant rate of change represented by a graph that forms a straight line
scatterplot a graphical representation used to display the relationship between discrete data pairs
slope the steepness of a line; rate of change in y (vertical) compared to the change in x (horizontal), rise/run, or change in y-values/change in x values, or (y2-y1)/(x2-x1), denoted as m in y=mx+b
trend line a line that best fits the data points of a scatterplot
unit rate a ratio between two different units where one of the terms is 1
y-intercept y coordinate of a point at which the relationship crosses the y-axis meaning the x coordinate is equal to zero, denoted as b in y=mx+b and the ordered pair (0, b)
origin (0, 0)
direct variation a linear relationship between two variables, x (independent) and y (dependent), that always has a constant unchanged ratio, k, and can be represented by y = kx
prediction using data already taken/ given to make an accurate educated guess about what the future could hold
Created by: mgallego21
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