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CC3 Chapter 7 Vocabulary
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Terms in this set (21)
A relationship between two (or more) variables.
association
A way of displaying data that can be put into categories (each category is a portion of the whole.)
circle graph
The form of an association can be linear or non-linear.
form
A line of best fit shows a trend in the data representing where the data falls.
line of best fit
If one variable decreases as the other variable increases.
negative association
A line that slopes upward from left to right on a graph.
positive slope
A ratio that describes how steep (or flat) a line is.
slope
An equation where the constant m is the slope, and b is the y-intercept of the graph.
y=mx+b
Data are in categories, non-numerical variables.
categorical variables
When data seems to be "gathered" around a particular value.
cluster
A table that displays counts, or frequencies, of data.
frequency table
An equation in two variables whose graph is a line.
linear equation
A line which slopes downward from left to right on a graph.
negative slope
A number in a set of data that is much larger or much smaller than the other numbers in the set.
outlier
A description of how much scatter there is in the data away from the line or curve of best fit.
strength of an association
The point(s) where a graph intersects the y-axis.
y-intercept
An angle with its vertex at the center of a circle.
central angle
The points on a coordinate grid where the grid lines intersect.
lattice points
If one variable in a relationship increases as the other variable increases,
positive association
Interest paid on the principal alone.
simple interest
A rate with a denominator of one when simplified.
unit rate
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