
Scatter Plots and Lines of Best Fit
Flashcard
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
Wayground Content
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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 grid.
2.
FLASHCARD QUESTION
Front
What does a line of best fit represent in a scatter plot?
Back
A line of best fit is a straight line that best represents the data on a scatter plot, indicating the trend of the data points.
3.
FLASHCARD QUESTION
Front
How can you determine the correlation from a scatter plot?
Back
You can determine correlation by observing the direction and pattern of the data points: positive correlation (upward trend), negative correlation (downward trend), or no correlation (no discernible pattern).
4.
FLASHCARD QUESTION
Front
What is positive correlation?
Back
Positive correlation occurs when an increase in one variable leads to an increase in another variable.
5.
FLASHCARD QUESTION
Front
What is negative correlation?
Back
Negative correlation occurs when an increase in one variable leads to a decrease in another variable.
6.
FLASHCARD QUESTION
Front
What does 'no correlation' mean?
Back
No correlation means there is no relationship between the two variables; changes in one do not affect the other.
7.
FLASHCARD QUESTION
Front
How do you estimate values using a line of best fit?
Back
To estimate values, draw a vertical line from the x-value to the line of best fit, then horizontally to the y-axis to find the corresponding y-value.
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