Scatterplot - 8th Grade Algebra

Front

What is a scatterplot?

Back

A scatterplot is a graphical representation of two variables, showing the relationship between them using points on a Cartesian plane.

Front

What does a negative association in a scatterplot indicate?

Back

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

Front

What does a positive correlation in a scatterplot suggest?

Back

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

Front

What is the purpose of using scatterplots in data analysis?

Back

Scatterplots are used to visually assess the relationship between two quantitative variables and to identify trends, patterns, or correlations.

Front

How can you determine the strength of a correlation in a scatterplot?

Back

The strength of a correlation can be determined by how closely the points cluster around a line of best fit; a tighter cluster indicates a stronger correlation.

Front

What does it mean if there is no correlation between two variables in a scatterplot?

Back

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

Front

What is the significance of outliers in a scatterplot?

Back

Outliers are data points that fall far from the trend of the rest of the data; they can significantly affect the correlation and interpretation of the data.

Front

How can you approximate values from a scatterplot?

Back

Values can be approximated by locating the corresponding point on the scatterplot and reading the value from the axes.

Front

What is the role of the axes in a scatterplot?

Back

The x-axis typically represents the independent variable, while the y-axis represents the dependent variable.

Front

What is a line of best fit in a scatterplot?

Back

A line of best fit is a straight line that best represents the data on a scatterplot, used to predict values and show trends.