for FREE

Bell Curve is a lightweight CAD application whose purpose is to help you study the normal or Gaussian probability distribution of random measurements in different types of experiments based on the mean and standard deviation numbers, as well as a graphical representation.

You are welcomed by a clean and intuitive working environment. There’s also support for a help manual that includes brief descriptions about the program’s capabilities.

A graphical representation of the calculations is revealed in the main window and the information is automatically adjusted in real time according to the values you input. The graph can be copied to the clipboard and pasted it into other third-party tools.

Bell Curve offers you the freedom to change the mean value (the location of the highest point of the curve and the standard deviation of the width and height of the curve) and standard deviation (normal distribution with a mean equal to zero and standard deviation equal to one).

The application lets you analyze the shape of the curve as a function of the mean and standard deviation. You are allowed to explore the area under the curve and alter the region by dragging the lower and upper X bounds.

You can make use of the built-in calculator in order to calculate the area for any normal curve based on the given mean and standard deviation, as well as X axis limits.

Last but not least, you can activate the ‘show area controls’ and adjust the position of the two markers placed on the curve and move them to the left or right.

All things considered, Bell Curve integrates a handy suite of features that can be used by students in order to learn the basis of the normal distribution or teachers to provide an interactive working environment.