You are working with the text-only light edition of "H.Lohninger: Teach/Me Data Analysis, Springer-Verlag, Berlin-New York-Tokyo, 1999. ISBN 3-540-14743-8". Click here for further information.

Exercise
Design a data set showing a bimodal probability density function

Try to design an artificial data set containing 1000 "measurements" on a single variable, which shows a bimodal probability density function. Calculate the most important measures of location and variation.

Use the for all the work. When ready, you should come up with the following material:


Hint: Bimodal density functions can be easily achieved by filling two mutually exclusive areas of the data matrix with two sets of normally distributed random numbers with different means. Use the formula editor of DataLab for creating the random numbers. As an alternative you may use the random number generator contained in the tools section of the Teach/Me distribution.

Last Update: 2006-Jšn-18