explain what it means to have a correlation in a scatterplot.

Brief Explanations:

A correlation in a scatter - plot indicates a relationship between two variables. If there is a positive correlation, as one variable increases, the other tends to increase. In a negative correlation, as one variable increases, the other tends to decrease. A lack of correlation means there is no discernible pattern between the changes in the two variables.

Answer:

A correlation in a scatter - plot shows a relationship (positive, negative or none) between two variables, where a positive correlation implies both variables change in the same direction, a negative correlation implies they change in opposite directions, and no correlation means no pattern in their changes.