Scatterplots and Line of Best Fit
Flashcard
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
+4
Standards-aligned
Wayground Content
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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 shows the relationship between two variables by displaying data points on a two-dimensional axis.
Tags
CCSS.8.SP.A.1
2.
FLASHCARD QUESTION
Front
What does a line of best fit represent in a scatterplot?
Back
A line of best fit represents the trend of the data points in a scatterplot, indicating the general direction of the relationship between the variables.
Tags
CCSS.8.SP.A.2
3.
FLASHCARD QUESTION
Front
How do you calculate the slope of a line given two points (x1, y1) and (x2, y2)?
Back
The slope (m) is calculated using the formula m = (y2 - y1) / (x2 - x1).
Tags
CCSS.8.EE.B.5
4.
FLASHCARD QUESTION
Front
What is the slope-intercept form of a linear equation?
Back
The slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.
Tags
CCSS.8.EE.B.6
CCSS.8.F.A.3
5.
FLASHCARD QUESTION
Front
What is a positive correlation in a scatterplot?
Back
A positive correlation occurs when an increase in one variable corresponds to an increase in another variable, resulting in an upward trend.
Tags
CCSS.HSS.ID.B.5
6.
FLASHCARD QUESTION
Front
What is a negative correlation in a scatterplot?
Back
A negative correlation occurs when an increase in one variable corresponds to a decrease in another variable, resulting in a downward trend.
Tags
CCSS.HSS.ID.B.5
7.
FLASHCARD QUESTION
Front
What does no correlation mean in a scatterplot?
Back
No correlation means there is no discernible relationship between the two variables; the data points do not show any trend.
Tags
CCSS.HSF-LE.A.1B
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