Answer :
With the help of a scatter diagram, you can easily determine whether there is a positive or negative correlation between two variables. The scatter diagram is a graphical representation of data points that shows how closely one variable is related to the other.
The points on the graph represent the data values for each variable. A positive correlation occurs when two variables move in the same direction. That is, as one variable increases, the other variable also increases. On the other hand, a negative correlation occurs when two variables move in the opposite direction. Collect the data for the two variables. Plot the data on a scatter diagram with one variable along the x-axis and the other variable along the y-axis.
Look at the pattern of the points on the scatter diagram. If the points are moving from left to right in an upward direction, then there is a positive correlation between the two variables. If the points are moving from left to right in a downward direction, then there is a negative correlation between the two variables. If the points are loosely clustered, then there is a weak correlation. Scatter diagrams are an essential tool for examining relationships between two variables. The diagram helps to identify the trend and strength of the relationship between the two variables. In simple terms, the scatter diagram shows whether there is a positive or negative correlation between the variables.
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