Exploring Association — Unit test Answers
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1
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What type of association is shown by the scatterplot?
A
linear, strongB
linear, weakC
nonlinear, strongD
nonlinear, weak2
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Which scatterplots have a nonlinear association? Select three options.
A
On a graph, points form a curved line.
B
On a graph, points form a curved line.
C
On a graph, points are grouped together to form a vertical cluster.
D
On a graph, points form a curved line.
E
On a graph, points are scattered all over the graph.
3
A teacher gathered data about the number of hours her students spent studying for a test and their resulting test grades. She found that on average, for every 30 minutes studied, the grade increased by 8 points. Which statements about this relationship are true? Check all that apply.
A
The data set would have a linear association.B
The data set would have a nonlinear association.C
The data set would have a positive correlation.D
The data set would have a negative correlation.E
Every student earns 16 more points for each additional hour they study.F
Students that study more tend to earn better grades on the test.4
Which characteristics describe the scatterplot? Check all that apply.
A
negative correlationB
positive correlationC
strong associationD
weak associationE
linearF
nonlinearDid you find these answers helpful?
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