5-3 Scatterplots and Trend lines
Flashcard
•
Mathematics
•
7th - 10th Grade
•
Practice Problem
•
Hard
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 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 scatterplot?
Back
A line of best fit is a straight line that best represents the data points in a scatterplot, indicating the general direction of the relationship between the variables.
3.
FLASHCARD QUESTION
Front
What is a positive association in a scatterplot?
Back
A positive association occurs when, as one variable increases, the other variable also increases, resulting in an upward trend in the scatterplot.
4.
FLASHCARD QUESTION
Front
What is a negative association in a scatterplot?
Back
A negative association occurs when, as one variable increases, the other variable decreases, resulting in a downward trend in the scatterplot.
5.
FLASHCARD QUESTION
Front
What does 'no association' mean in a scatterplot?
Back
No association means that there is no discernible relationship between the two variables, and the data points do not show any clear trend.
6.
FLASHCARD QUESTION
Front
How do you identify a line of best fit?
Back
A line of best fit can be identified by visually assessing which line minimizes the distance from all data points to the line itself.
7.
FLASHCARD QUESTION
Front
What is the purpose of a trend line in data analysis?
Back
A trend line helps to summarize the overall direction of the data and can be used to make predictions about future data points.
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