Scatterplot and Trend lines Practice #2
Flashcard
•
Mathematics
•
7th Grade
•
Practice Problem
•
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 shows the relationship between two quantitative variables by displaying data points on a two-dimensional axis.
2.
FLASHCARD QUESTION
Front
What does a trend line represent in a scatterplot?
Back
A trend line is a straight line that best represents the data points in a scatterplot, indicating the general direction of the data.
3.
FLASHCARD QUESTION
Front
What does it mean if a scatterplot shows a positive correlation?
Back
A positive correlation means that as one variable increases, the other variable also tends to increase.
4.
FLASHCARD QUESTION
Front
What does it mean if a scatterplot shows a negative correlation?
Back
A negative correlation means that as one variable increases, the other variable tends to decrease.
5.
FLASHCARD QUESTION
Front
What does it indicate if there is no correlation in a scatterplot?
Back
No correlation indicates that there is no predictable relationship between the two variables.
6.
FLASHCARD QUESTION
Front
How can you determine the slope of a trend line?
Back
The slope of a trend line can be determined by calculating the change in the y-values divided by the change in the x-values between two points on the line.
7.
FLASHCARD QUESTION
Front
What is the purpose of using a trend line in data analysis?
Back
The purpose of using a trend line is to summarize the overall pattern of the data and make predictions based on that pattern.
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