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How to create a frequency table, Class Interval

Presentation of data in frequency distribution is one of the first steps that is usually done in analyzing a data. Interpretation of data c...
Cumulative Frequency Table (Less Than and Greater Than)

Presentation of data in a frequency distribution is one of the usual first steps in analyzing a data set. Interpreting data can usually be...
Proof of Normal Distribution Formulas

We assume that X is a normal random variable or X is normally distributed, with parameters π and σ 2 if the probability density function...
Simple Linear Regression Analysis - Definition, How to Create a regression formula, Explanation, Example

Definition of Regression Analysis A group of data in which contains a numerical variable, where the description of the variable data is o...
Definition of Variable, Measurement Scale, Qualitative and Quantitative Data

Variable and Data Definitions The characteristics of an individual or object that can be observed and which are different from other indi...
Poisson Random Variable Theory and Poisson Calculation in MATLAB

A random X variable that takes the values 0, 1, 2, ... is called a Poisson random variable with a parameter λ if for an λ> 0, ...
Properties of Sigma Notation

Sigma notation is a notation used to express the sum. The sigma notation is symbolized by ∑. The purpose of the above sigma formula is ...

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