Scatter Plots and Regression
Flashcard
•
Mathematics
•
9th Grade
•
Hard
+7
Standards-aligned
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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.
Tags
CCSS.8.SP.A.1
2.
FLASHCARD QUESTION
Front
What does a strong positive correlation indicate in a scatter plot?
Back
A strong positive correlation indicates that as one variable increases, the other variable also tends to increase.
Tags
CCSS.HSS.ID.B.5
3.
FLASHCARD QUESTION
Front
What is the purpose of linear regression?
Back
Linear regression is used to model the relationship between two variables by fitting a linear equation to the observed data.
4.
FLASHCARD QUESTION
Front
What is the line of best fit?
Back
The line of best fit is a straight line that best represents the data on a scatter plot, minimizing the distance between the line and all data points.
Tags
CCSS.8.EE.B.5
5.
FLASHCARD QUESTION
Front
What is the range of correlation coefficients?
Back
Correlation coefficients range from -1 to 1, where -1 indicates a perfect negative correlation, 1 indicates a perfect positive correlation, and 0 indicates no correlation.
Tags
CCSS.HSS.ID.B.5
6.
FLASHCARD QUESTION
Front
How do you interpret a correlation coefficient of 0.85?
Back
A correlation coefficient of 0.85 indicates a strong positive correlation between the two variables.
Tags
CCSS.HSS.ID.B.5
7.
FLASHCARD QUESTION
Front
What does it mean if a scatter plot shows no correlation?
Back
If a scatter plot shows no correlation, it means there is no discernible relationship between the two variables.
Tags
CCSS.HSF-LE.A.1B
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