Scatterplots and Trendlines
Flashcard
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a scatterplot?
Back
A scatterplot is a graph that displays values for typically two variables for a set of data. Each point represents an observation in the dataset.
2.
FLASHCARD QUESTION
Front
What does a trendline represent in a scatterplot?
Back
A trendline is a line that best represents the data points in a scatterplot, showing the general direction of the data.
3.
FLASHCARD QUESTION
Front
What is a positive association in a scatterplot?
Back
A positive association means that as one variable increases, the other variable also tends to increase.
4.
FLASHCARD QUESTION
Front
What is a negative association in a scatterplot?
Back
A negative association means that as one variable increases, the other variable tends to decrease.
5.
FLASHCARD QUESTION
Front
What does 'no association' mean in the context of scatterplots?
Back
No association means there is no discernible relationship between the two variables; the points do not show a clear pattern.
6.
FLASHCARD QUESTION
Front
How can you determine the strength of an association in a scatterplot?
Back
The strength of an association can be determined by how closely the data points cluster around the trendline; tighter clusters indicate stronger associations.
7.
FLASHCARD QUESTION
Front
What is a linear association?
Back
A linear association is when the relationship between the two variables can be represented by a straight line.
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