The Psychology of Quality and More

| Menu | Books | Share | Search | Settings |

Central limit theorem

The central limit theorem states that when you average sets of numbers, the distribution of the sets will tend towards a normal distribution. It is particularly useful in building control charts where averaging subgroups enables control limits to be better defined and improves the value of the chart. 

A simple example of how the central limit theorem works is in the distribution of scores from increasing numbers of dice throws, as below.

See also:

Variation, SPC, Histogram, Control Chart

Site Menu

| Home | Top | Settings |

Quality: | Quality Toolbook | Tools of the Trade | Improvement Encyclopedia | Quality Articles | Being Creative | Being Persuasive |

And: | C Style (Book) | Stories | Articles | Bookstore | My Photos | About | Contact |

Settings: | Computer layout | Mobile layout | Small font | Medium font | Large font | Translate |


You can buy books here

More Kindle books:

And the big
paperback book

Look inside


Please help and share:


| Home | Top | Menu |

© Changing Works 2002-
Massive Content -- Maximum Speed