Despite the chant that correlation is not causation, some researchers believe the design of scatter plots nudges us to the wrong conclusions. Can a change in their design lessen that risk? Analyzing ...

Scatter graphs are used to represent and compare two sets of data. By looking at a scatter graph, we can see whether there is any connection (correlation) between the two sets of data. Matt sells ...

Data can be overwhelming, but Excel’s CORREL function helps you cut through the noise. Calculating the correlation coefficient is your secret weapon for finding hidden trends and making smarter ...

Scatter graphs show the relationship between two sets of data, eg number of tourists and number of tourist facilities or weight and height. A line of best fit, or trend line, can be added to the ...

If you understand the definition of a mathematical function, a good way to judge it is that any line drawn parallel to the y-axis intersects with the values in the function’s curve only once. The same ...

The legend on an Excel scatter plot is simply a list of the names for each of the series on the chart. The legend is color coordinated, so you can quickly determine which data points belong to which ...