Lines of Best Fit

Lines of Best Fit

Assessment

Flashcard

Mathematics

8th Grade

Easy

CCSS
8.EE.B.5, HSF-LE.A.1B, RI.8.7

+5

Standards-aligned

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a Line of Best Fit?

Back

A Line of Best Fit is a straight line that best represents the data on a scatter plot, showing the overall trend of the data points.

Tags

CCSS.8.EE.B.5

2.

FLASHCARD QUESTION

Front

How do you determine a good Line of Best Fit?

Back

A good Line of Best Fit minimizes the distance between the line and all the data points, ideally passing through or near most of them.

Tags

CCSS.8.EE.B.5

3.

FLASHCARD QUESTION

Front

What does a positive slope in a Line of Best Fit indicate?

Back

A positive slope indicates a positive correlation between the two variables, meaning as one variable increases, the other also tends to increase.

Tags

CCSS.8.EE.B.5

4.

FLASHCARD QUESTION

Front

What does a negative slope in a Line of Best Fit indicate?

Back

A negative slope indicates a negative correlation between the two variables, meaning as one variable increases, the other tends to decrease.

Tags

CCSS.8.EE.B.5

5.

FLASHCARD QUESTION

Front

What is an outlier in a data set?

Back

An outlier is a data point that differs significantly from other observations, which can affect the accuracy of the Line of Best Fit.

6.

FLASHCARD QUESTION

Front

Why might a trend line not be a good fit for the data?

Back

A trend line may not be a good fit if it does not pass through most data points, if there are outliers, or if the data does not show a clear trend.

7.

FLASHCARD QUESTION

Front

What is a scatter plot?

Back

A scatter plot is a graph that displays values for typically two variables for a set of data, showing how much one variable is affected by another.

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