Scatter plots- Lines of Best Fit

Flashcard
•
Mathematics
•
8th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a scatter plot?
Back
A scatter plot is a graph that shows the relationship between two quantitative variables by displaying data points on a two-dimensional axis.
2.
FLASHCARD QUESTION
Front
What does a positive association in a scatter plot indicate?
Back
A positive association indicates that as one variable increases, the other variable also tends to increase.
3.
FLASHCARD QUESTION
Front
What does a negative association in a scatter plot indicate?
Back
A negative association indicates that as one variable increases, the other variable tends to decrease.
4.
FLASHCARD QUESTION
Front
What does 'no association' mean in a scatter plot?
Back
No association means that there is no discernible relationship between the two variables; changes in one do not affect the other.
5.
FLASHCARD QUESTION
Front
What is a line of best fit?
Back
A line of best fit is a straight line that best represents the data on a scatter plot, showing the general direction of the data.
6.
FLASHCARD QUESTION
Front
How do you determine the line of best fit?
Back
The line of best fit is determined by minimizing the distance between the line and all the data points, often using the least squares method.
7.
FLASHCARD QUESTION
Front
Can a line of best fit go through the origin?
Back
No, a line of best fit does not have to go through the origin; it can start anywhere on the graph.
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