Line of Best Fit
Flashcard
•
Mathematics
•
8th - 10th Grade
•
Practice Problem
•
Hard
+6
Standards-aligned
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a line of best fit used for?
Back
To make predictions.
Tags
CCSS.8.SP.A.2
2.
FLASHCARD QUESTION
Front
How do you use a line of best fit to make predictions?
Back
You can use the line to estimate values based on the trend shown in the scatter plot.
3.
FLASHCARD QUESTION
Front
What does a scatter plot represent?
Back
A scatter plot shows the relationship between two quantitative variables.
Tags
CCSS.8.SP.A.1
4.
FLASHCARD QUESTION
Front
What does the slope of the line of best fit indicate?
Back
The slope indicates the direction and strength of the relationship between the two variables.
Tags
CCSS.8.EE.C.7B
5.
FLASHCARD QUESTION
Front
What does the correlation coefficient (r) indicate?
Back
It indicates the strength and direction of a linear relationship between two variables.
Tags
CCSS.HSS.ID.C.8
6.
FLASHCARD QUESTION
Front
What does r = -0.89 signify?
Back
It signifies a strong negative linear relationship.
Tags
CCSS.HSS.ID.B.5
7.
FLASHCARD QUESTION
Front
What is the purpose of a trend line in a scatter plot?
Back
To summarize the data and show the general direction of the relationship.
Tags
CCSS.8.SP.A.2
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