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 ...

Scatter graphs are a good way of displaying two sets of data to see if there is a correlation close correlationThe relationship between two sets of data. Usually described as positive or negative., or ...

Two columns or rows of data in Microsoft Excel may contain useful information, but you'll just have a set of numbers. You can give spreadsheet viewers a graphical representation of those numbers by ...

The number of umbrellas sold and the amount of rainfall on 9 days is shown on the scatter graph and in the table. The graph shows that there is a positive correlation between the number of umbrellas ...

A scatterplot chart graphs two related data values as a single dot by plotting one value on the horizontal X axis and the other value on the vertical Y axis. For example, you could plot an employee's ...