Scatter Plots Formative

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 a trend line represent in a scatter plot?

Back

A trend line is a straight line that best represents the data points in a scatter plot, indicating the general direction of the data.

Front

How can you use a trend line to make predictions?

Back

You can use a trend line to predict values by finding the corresponding value on the trend line for a given input.

Front

What is positive correlation in a scatter plot?

Back

Positive correlation occurs when an increase in one variable leads to an increase in another variable, resulting in an upward slope.

Front

What is negative correlation in a scatter plot?

Back

Negative correlation occurs when an increase in one variable leads to a decrease in another variable, resulting in a downward slope.

Front

What does no correlation mean in a scatter plot?

Back

No correlation means there is no discernible relationship between the two variables, and the data points do not show any trend.

Front

What is a line of best fit?

Back

A line of best fit is a straight line that best represents the data in a scatter plot, minimizing the distance between the line and all data points.

Front

How do you determine if a line is a line of best fit?

Back

A line is a line of best fit if it passes through the middle of the data points and accurately represents the trend of the data.

Front

What is the purpose of using scatter plots?

Back

Scatter plots are used to visually display the relationship between two variables and to identify trends, correlations, or patterns.

Front

What is the difference between a linear function and a non-linear function?

Back

A linear function has a constant rate of change and can be represented by a straight line, while a non-linear function does not have a constant rate of change and is represented by a curve.