Scatterplots and Lines of Best Fit

Flashcard
•
Mathematics
•
8th Grade
•
Hard
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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 displays values for typically two variables for a set of data. Each point represents an observation in the dataset.
2.
FLASHCARD QUESTION
Front
What does a line of best fit represent in a scatterplot?
Back
A line of best fit represents the trend in the data, showing the general direction that the data points follow.
3.
FLASHCARD QUESTION
Front
How do you determine the slope of a line?
Back
The slope of a line is determined by the formula: slope = (change in y) / (change in x). It indicates the steepness and direction of the line.
4.
FLASHCARD QUESTION
Front
What is a positive correlation?
Back
A positive correlation means that as one variable increases, the other variable also increases.
5.
FLASHCARD QUESTION
Front
What is a negative correlation?
Back
A negative correlation means that as one variable increases, the other variable decreases.
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
What is an outlier in a dataset?
Back
An outlier is a data point that differs significantly from other observations in the dataset, often appearing far away from the trend.
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