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CC3 Chapter 7 Vocab

TermDefinition
association A relationship between two (or more) variables.
central angle An angle with its vertex at the center of a circle.
categorical variable In statistics, a categorical variable is a variable that can take on one of a limited, and usually fixed, number of possible values
circle graph A way of displaying data that can be put into categories (like what color you prefer, your gender, or the state you were born in).
cluster a grouping of data points on a graph
constant of proportionality In a proportional relationship, equations are of the form y = kx,
form can be linear or non-linear, can contain clusters of data.
frequency table displays counts, or frequencies, of data.
lattice point The points on a coordinate grid where the grid lines intersect.
line of best fit A line of best fit shows a trend in the data representing where the data falls.
linear equation An equation in two variables whose graph is a line. Usually appears in the form y = mx + b.
linear(non-linear) form data that forms a line (data that does not form a line)
negative association a relationship where one variable increases and the other variable decreases
negative slope as x increases, y decreases
positive association a relationship where one variable increases and the other variable increases
positive slope as x increases, y increases
outlier A number in a set of data that is much larger or much smaller than the other numbers in the set.
simple interest Interest paid on the principal alone.
slope A ratio that describes how steep (or flat) a line is.
strength (of an association) A description of how much scatter there is in the data away from the line or curve of best fit.
unit rate A rate with a denominator of one when simplified.
y-intercept The point(s) where a graph intersects the y-axis.
y = mx + b When two quantities x and y have a linear relationship, The constant m is the slope, and b is the y-intercept of the graph.
Created by: reiderk
 

 



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