# Statistics

This category includes articles about statistics. Statistical methods are important to know about in order to be able to analyze financial markets and financial instruments.

## Class central value | Statistics

The central value for a class is the value that represents the average for the class. ...

## Class Interval | Statistics

The class interval is the width of a class, the class interval is the difference between the maximum limit for the class and the lowest limit for the class. ...

## Classes | Statistics

Classes are groups of data and data is grouped into classes to organize and describe the data. Once a survey has been undertaken, you have raw data that need to be organized into classes to be meaning ...

## Coefficient of Variation (CV) | Statistics

Coefficient of variation is a measure of relative dispersion. The coefficient of variation gives a value for the dispersion in percent. ...

## Continuous random variables | Statistics

Continuous random variables are variables that can assume any value within a range. Examples of continuous random variables are the length of a person, the weight of a train, the diameter of a nail ha ...

## Descriptive statistics

Descriptive statistics are methods of organizing, summarizing and presenting data in a way that the data is easy to understand. ...

## Discrete random variables | Statistics

Discrete random variables are variables that can assume only certain clearly separated values such as integers. ...

## Estimate | Statistics

An estimate in statistics is a value that is calculated directly from a sample. An estimate is just an estimate of a parameter, an estimate can never be said to be the fair value of a population. ...

## Frequency distribution | Statistics

The frequency distribution is a method to organize data within the field of descriptive statistics. A frequency distribution is a grouping of data into mutually exclusive classes with the number of ob ...

## Geometric mean | Statistics

The geometric mean is a special form of central value that is useful when we have to calculate the average of the percentages, ratios, indices and growth rates. ...

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