Zaloguj się

Chapter 3

Measure of Central Tendency

Co to jest tendencja centralna?
Co to jest tendencja centralna?
Descriptive statistics describe or summarize relevant characteristics of a sample and aid in the analysis of data of interest. When analyzing large ...
Średnia arytmetyczna
Średnia arytmetyczna
The arithmetic mean is the most commonly used measure of the central tendency of a data set. It is defined as the sum of all the elements constituting the ...
Średnia geometryczna
Średnia geometryczna
The mean is a measure of the central tendency of a data set. In some data sets, the data is inherently multiplicative, and the arithmetic mean is not ...
Średnia harmoniczna
Średnia harmoniczna
The arithmetic mean is usually skewed towards the larger values in the data set. Therefore, to avoid this inherent bias towards smaller values, the ...
Średnia obcięta
Średnia obcięta
While measuring the mean of a data set, care needs to be taken when associating the mean to its central tendency. The same goes for the arithmetic mean, ...
Średnia ważona
Średnia ważona
While taking the arithmetic, geometric, or harmonic mean of a sample data set, equal importance is assigned to all the data points. However, all the ...
Średni pierwiastek kwadratowy
Średni pierwiastek kwadratowy
If in an experiment, data values have a probability of being both positive and negative, neither the arithmetic mean, the geometric mean, nor the harmonic ...
Średnia z rozkładu częstości
Średnia z rozkładu częstości
Sometimes, data gathered from an experiment on a large sample or population are organized into concise tables. In such cases, the frequency of the ...
Co to jest tryb?
Co to jest tryb?
The mode is one of the commonly used measures of a central tendency. It is defined as the most frequent value in a data set. There can be more than one ...
Mediana
Mediana
Besides mean, the median is a widely used measure of central tendency. Typically, median is defined as the central or middle value of a data set, measured ...
Średniotonowy
Średniotonowy
A somewhat easy to compute quantitative estimate of a data set’s central tendency is its midrange, which is defined as the mean of the minimum and ...
Skośność
Skośność
The measures of central tendency calculated from a data set may not reveal much about its intrinsic distribution. If a plot is made of the data ...
Rodzaje skośności
Rodzaje skośności
If the frequency distribution of a data set is more inclined towards smaller or larger values, the distribution is said to be skewed. If data values are ...
JoVE Logo

Prywatność

Warunki Korzystania

Zasady

Badania

Edukacja

O JoVE

Copyright © 2025 MyJoVE Corporation. Wszelkie prawa zastrzeżone