Scatter plots- Lines of Best Fit

Front

What is a scatter plot?

Back

A scatter plot is a graph that shows the relationship between two quantitative variables by displaying data points on a two-dimensional axis.

Front

What does the line of best fit represent in a scatter plot?

Back

The line of best fit represents the trend in the data, showing the general direction that the data points follow.

Front

How do you identify an outlier in a scatter plot?

Back

An outlier is a data point that is significantly different from the other points in the scatter plot, often lying far away from the trend.

Front

What does a positive correlation in a scatter plot indicate?

Back

A positive correlation indicates that as one variable increases, the other variable also tends to increase.

Front

What does a negative correlation in a scatter plot indicate?

Back

A negative correlation indicates that as one variable increases, the other variable tends to decrease.

Front

What does it mean if there is no correlation in a scatter plot?

Back

No correlation means that there is no apparent relationship between the two variables; changes in one do not affect the other.

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How can you determine the accuracy of a line of best fit?

Back

The accuracy of a line of best fit can be determined by how closely the data points cluster around the line.

Front

What is the purpose of using a line of best fit?

Back

The purpose of using a line of best fit is to make predictions about one variable based on the value of another variable.

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What are the coordinates of an outlier?

Back

The coordinates of an outlier are the specific (x, y) values that do not fit the general trend of the data.

Front

What does it mean if a line of best fit is not accurate?

Back

If a line of best fit is not accurate, it means that it does not represent the data well and may lead to incorrect predictions.