Scatter Plots

A scatter plot is a graphical representation of two variables where each point represents an observation. It helps to visualize the relationship between the variables.

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

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

'No association' means that there is no discernible relationship between the two variables represented in the scatter plot.

The line of best fit is a straight line that best represents the data on a scatter plot, showing the general direction of the data points.

The line of best fit can be identified as the line that minimizes the distance between itself and all the data points in the scatter plot.

The x-axis is the horizontal axis that typically represents the independent variable in a scatter plot.

The y-axis is the vertical axis that typically represents the dependent variable in a scatter plot.

A strong correlation means that the data points are closely clustered around the line of best fit, indicating a strong relationship between the two variables.

An example of a negative correlation is the relationship between the age of a car and its value; as the car gets older, its value typically decreases.