Steps of statistical analysis
Statistical analysis often refers to the process of sorting, classifying and interpreting the collected relevant data. The basic steps of statistical analysis include: 1. Collect data; 2. Organize data; 3. Analyze data.

#Statistical analysis often refers to the process of sorting, classifying and interpreting the relevant data collected. The basic steps of statistical analysis include: 1. Collect data; 2. Organize data; 3. Analyze data. We will expand on the description of the basic steps of statistical analysis methods in the article.
Statistical analysis can be roughly divided into the following three steps:
1. Collect data
Collecting data is the premise and basis for statistical analysis . There are many ways to collect data. Direct data can be obtained through experiments, observations, measurements, surveys, etc., and indirect data can also be obtained through literature retrieval, reading, etc.
In the process of collecting data, in addition to paying attention to the authenticity and reliability of the data, special attention must be paid to distinguishing two types of data of different natures: One is continuous data, also called measurement data, which refers to the data obtained through actual measurements. The second is discontinuous data, also called counting data, which refers to data obtained by counting attribute points such as categories and levels of things.
2. Organizing data
Organizing data is the process of classifying and summarizing the collected data according to certain standards.
Since most of the collected data are disordered, scattered, and unsystematic, before entering statistical calculations, the data need to be verified according to the purpose and requirements of the research, and the untrue parts are eliminated. Grouping, summarizing or listing can simplify, visualize and systematize the original data, and initially reflect the distribution characteristics of the data.
3. Analyzing data
Analyzing data refers to the process of drawing conclusions through statistical operations on the basis of sorting data. It is the core and key of statistical analysis. .
Data analysis can usually be divided into two levels: the first level is to use descriptive statistics to calculate externally representative indicators that reflect the central tendency, degree of dispersion and correlation strength of the data;
The second level is to use inferential statistics to process data based on descriptive statistics, use sample information to infer the overall situation, and analyze and speculate on the overall characteristics and patterns.
The above is the detailed content of Steps of statistical analysis. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
AI Hentai Generator
Generate AI Hentai for free.
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
1378
52
How to implement data statistics and analysis in uniapp
Oct 24, 2023 pm 12:37 PM
How to implement data statistics and analysis in uniapp 1. Background introduction Data statistics and analysis are a very important part of the mobile application development process. Through statistics and analysis of user behavior, developers can have an in-depth understanding of user preferences and usage habits. Thereby optimizing product design and user experience. This article will introduce how to implement data statistics and analysis functions in uniapp, and provide some specific code examples. 2. Choose appropriate data statistics and analysis tools. The first step to implement data statistics and analysis in uniapp is to choose the appropriate data statistics and analysis tools.
How to use SQL statements for data aggregation and statistics in MySQL?
Dec 17, 2023 am 08:41 AM
How to use SQL statements for data aggregation and statistics in MySQL? Data aggregation and statistics are very important steps when performing data analysis and statistics. As a powerful relational database management system, MySQL provides a wealth of aggregation and statistical functions, which can easily perform data aggregation and statistical operations. This article will introduce the method of using SQL statements to perform data aggregation and statistics in MySQL, and provide specific code examples. 1. Use the COUNT function for counting. The COUNT function is the most commonly used
Implementation of linear and pie chart functions in Vue statistical charts
Aug 19, 2023 pm 06:13 PM
The linear and pie chart functions of Vue statistical charts are implemented in the field of data analysis and visualization. Statistical charts are a very commonly used tool. As a popular JavaScript framework, Vue provides convenient methods to implement various functions, including the display and interaction of statistical charts. This article will introduce how to use Vue to implement linear and pie chart functions, and provide corresponding code examples. Linear graph function implementation A linear graph is a type of chart used to display trends and changes in data. In Vue, we can use some excellent
How to quickly build a statistical chart system under the Vue framework
Aug 21, 2023 pm 05:48 PM
How to quickly build a statistical chart system under the Vue framework. In modern web applications, statistical charts are an essential component. As a popular front-end framework, Vue.js provides many convenient tools and components that can help us quickly build a statistical chart system. This article will introduce how to use the Vue framework and some plug-ins to build a simple statistical chart system. First, we need to prepare a Vue.js development environment, including installing Vue scaffolding and some related plug-ins. Execute the following command in the command line
Do you know how to count people in excel?
Mar 20, 2024 pm 01:30 PM
As one of the commonly used office software, Excel is an indispensable good partner in our life and work. We often use it to count people, which is also the most common operation. For veterans who are familiar with Excel, using it to count people is a matter of minutes; but if you are a novice, using ecxel to count people is simply difficult! So how to use it? I compiled a document today, I hope it can help you! Let’s take a look together! Method 1: [Use functions to count people] (as shown in the picture) We enter [=COUNT(B2:B6)] in the bottom unit cell; then, press [Enter] to get the number of people. Method 2: [Use the status bar to count people] (as shown in the picture). 1. We click the mouse
Analysis of the reasons why the secondary directory of DreamWeaver CMS cannot be opened
Mar 13, 2024 pm 06:24 PM
Title: Analysis of the reasons and solutions for why the secondary directory of DreamWeaver CMS cannot be opened. Dreamweaver CMS (DedeCMS) is a powerful open source content management system that is widely used in the construction of various websites. However, sometimes during the process of building a website, you may encounter a situation where the secondary directory cannot be opened, which brings trouble to the normal operation of the website. In this article, we will analyze the possible reasons why the secondary directory cannot be opened and provide specific code examples to solve this problem. 1. Possible cause analysis: Pseudo-static rule configuration problem: during use
Case analysis of Python application in intelligent transportation systems
Sep 08, 2023 am 08:13 AM
Summary of case analysis of Python application in intelligent transportation systems: With the rapid development of intelligent transportation systems, Python, as a multifunctional, easy-to-learn and use programming language, is widely used in the development and application of intelligent transportation systems. This article demonstrates the advantages and application potential of Python in the field of intelligent transportation by analyzing application cases of Python in intelligent transportation systems and giving relevant code examples. Introduction Intelligent transportation system refers to the use of modern communication, information, sensing and other technical means to communicate through
ThinkPHP6 code performance analysis: locating performance bottlenecks
Aug 27, 2023 pm 01:36 PM
ThinkPHP6 code performance analysis: locating performance bottlenecks Introduction: With the rapid development of the Internet, more efficient code performance analysis has become increasingly important for developers. This article will introduce how to use ThinkPHP6 to perform code performance analysis in order to locate and solve performance bottlenecks. At the same time, we will also use code examples to help readers understand better. Importance of Performance Analysis Code performance analysis is an integral part of the development process. By analyzing the performance of the code, we can understand where a lot of resources are consumed


