Scatter Plots & Line of Best Fit

Flashcard
•
Mathematics
•
9th 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 the line of best fit represent in a scatter plot?
Back
The line of best fit represents the trend of the data points in a scatter plot, indicating the general direction of the relationship between the variables.
3.
FLASHCARD QUESTION
Front
How do you determine if a line is an accurate line of best fit?
Back
A line is an accurate line of best fit if it minimizes the distance between itself and all the data points, ideally passing through the center of the data distribution.
4.
FLASHCARD QUESTION
Front
What is correlation in the context of scatter plots?
Back
Correlation refers to the strength and direction of a linear relationship between two variables, which can be positive, negative, or none.
5.
FLASHCARD QUESTION
Front
What does a positive correlation indicate?
Back
A positive correlation indicates that as one variable increases, the other variable also tends to increase.
6.
FLASHCARD QUESTION
Front
What does a negative correlation indicate?
Back
A negative correlation indicates that as one variable increases, the other variable tends to decrease.
7.
FLASHCARD QUESTION
Front
What is the formula for the line of best fit in linear regression?
Back
The formula for the line of best fit is typically expressed as y = mx + b, where m is the slope and b is the y-intercept.
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