Scatterplots and Trend Lines Review
Flashcard
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
Wayground Content
FREE Resource
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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 axis.
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 on a scatterplot, indicating the general direction of the relationship between the variables.
3.
FLASHCARD QUESTION
Front
What is correlation in the context of scatterplots?
Back
Correlation refers to the strength and direction of a linear relationship between two variables, which can be positive, negative, or none.
4.
FLASHCARD QUESTION
Front
What does a positive correlation look like on a scatterplot?
Back
A positive correlation appears as an upward slope from left to right, indicating that as one variable increases, the other variable also increases.
5.
FLASHCARD QUESTION
Front
What does a negative correlation look like on a scatterplot?
Back
A negative correlation appears as a downward slope from left to right, indicating that as one variable increases, the other variable decreases.
6.
FLASHCARD QUESTION
Front
What is the equation of a line in slope-intercept form?
Back
The equation of a line in slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.
7.
FLASHCARD QUESTION
Front
How do you determine the slope of a line from a scatterplot?
Back
The slope of a line can be determined by selecting two points on the line and using the formula (change in y) / (change in x).
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