12/19-Scatterplots and Linear Regression

Front

What is a scatterplot?

Back

A scatterplot is a type of graph that shows the relationship between two sets of data by displaying points on a coordinate plane.

Front

What does a line of best fit represent?

Back

A line of best fit is a straight line that best represents the data on a scatterplot, showing the trend of the data.

Front

What is correlation in data?

Back

Correlation describes the relationship between two variables, indicating how one may change in relation to the other.

Front

What does positive correlation mean?

Back

Positive correlation means that as one variable increases, the other variable also increases.

Front

What does negative correlation mean?

Back

Negative correlation means that as one variable increases, the other variable decreases.

Front

What is foot length?

Back

Foot length is the measurement of how long a person's foot is, usually measured in centimeters.

Front

What is height?

Back

Height is the measurement of how tall a person is, usually measured in centimeters.

Front

How do you find the height of a person using foot length?

Back

You can use a scatterplot to find the height of a person based on their foot length by looking for the corresponding point on the graph.

Front

What is a linear equation?

Back

A linear equation is an equation that makes a straight line when graphed, often written in the form y = mx + b.

Front

What does 'y = mx + b' mean?

Back

In the equation y = mx + b, 'm' is the slope of the line, and 'b' is the y-intercept, where the line crosses the y-axis.