Benutzerhandbuch MenĂŒ

Benutzerhandbuch

Dispersion

The standard deviation is a good characteristic of normal distribution on the mathematical plan, but it is not really intuitively equivalent. We therefore prefer to use the term "dispersion" that corresponds to:
Dispersion = width of the interval value within which we observe 99.73% of values.
With a normal distribution the dispersion is calculated simply
The concept of dispersion is much more intuitive than standard deviation. Let us take the example using the following data. An observation of 1000 pieces of data in a normal distribution with an average of 0 and standard deviation of 1:
dispersion1
If we want to intuitively characterize the dispersion of these values, we would be tempted to say that the value dispersion is around 6 as the observed values are limited between -3 and +3.
Our intuitive definition of the dispersion actually corresponds to the sample range (Range= Max - Min). However, using the range as a characteristic of a distribution has no statistical direction. Actually, the normal distribution varies from -infinity to +infinity making the range of this distribution infinite.
The dispersion corresponds to the intuitive definition of the dispersion all while having a statistical direction. This is an interval within which we will observe practically all the values, i.e. 99.7% of values.

Eine Komplettlösung fĂŒr Industrie 4.0

8 statistische Module

trial

Versuch

€ 0

30 Tage

Testen Sie es kostenlos

APC

SPC

Kontrolle

Analyse

check

30 Tage

check

Alle Funktionen von Ellistat

check

1 Benutzer

Technische UnterstĂŒtzung und Wartung inbegriffen

student

Student

€ 0

1 Jahr

Zur Kasse

Analyse

check

1 Jahr

check

Alle Funktionen von Ellistat

check

1 Benutzer

check

Lizenz fĂŒr Studenten, die ĂŒber einen gĂŒltigen Studentenausweis verfĂŒgen

Technische UnterstĂŒtzung und Wartung inbegriffen

standard

Standard

€ 49

pro Benutzer pro Monat

Zur Kasse

Analyse

check

Lizenz wird alle zwei Monate erneuert

check

Alle Funktionen von Ellistat

check

Unbegrenzter Benutzer

check

Technische UnterstĂŒtzung und Wartung inbegriffen