Excel Sheets For Statistics With Formulas For Free
by Find a list of Excel Sheets used for Statistics in this site.1. Excel Sheet for Independent Sample t-Test – Question 3 2. Excel Sheet for …
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Hypothesis Testing Problems – Question 10(Sussan Sound predicts that….)
Question on ANOVASussan Sound predicts that students will learn most effectively with a constant background sound, as opposed to an unpredictable sound or no sound …
How to Perform Analysis of Variance (ANOVA) – Step By Step Procedure
In this lesson, we would look at the steps to follow to perform Analysis of Variance(ANOVA). This would be very clear and easy to follow. …
Hypothesis Testing Problems – Question 8(An automatic cutter machine…)
Question An automatic cutter machine must cut steel strips of 1200 mm lenght. From a preliminary data, we checked that the lenghts of the pieces …
Hypothesis Testing Problems – Question 4( We want to compare the heights of…
QuestionWe want to compare the heights in inches of two groups of individuals. Here are the measurements:X: 175, 168, 168, 190, 156, 181, 182, 175, …
Welch’s t-Test – How and When to Use it
Welch’s t-testThe Welch’s t-test is also called unequal variances t-test that is used to test if the means of two populations are equal. This test …
Hypothesis Testing Problem – Quesion 7 (Test wether cars get better mileage…)
Question 7 A study was performed to test wether cars get better mileage on premium gas than on regular gas. Each of 10 cars was …
Hypothesis Testing – How to Perform Paired-Sample t-Test (With Python Codes)
by What is paired-sample t-test? This is also called two-sample t-test or dependent samples t-test. This is a test used to compare the means of two …
Hypothesis Testing Problem – Quesion 6 (20 Students given diagnostic module…)
Question A sample of 20 students were selected and given a diagnostic module prior to studying for a test. And then they were given the …
Hypothesis Testing Problems – Question 5 ( A clinic provides a program to…
How to Perform Paired-Sample t-Test Question A clinic provides a program to help their clients lose weight and asks a consumer agency to investigate the …
Hypothesis Testing Problem – Question 2 ( A professor wants to know if…)
Question 2A professor wants to knowif her introductory statistics class has a good grasp of baic math. Six students are chosen at random form the …
Hypothesis Testing Problem – Question 1(In a population, the average IQ…
QuestionIn the population, the average IQ is 100 with a standard deviation of 15. A team of scientists want to test a new medication to …
Parametric Tests in Statistics – How to Know Which to Use
This is an easy topic to understand if you understand the basic concepts I am going to present in this article. So read carefully as …
Five Conflict Resolution Techniques Every Employee/Manager Should Know(from PMBOK)
The interesting thing is that everyone irrespective of your field can and needs to master these skills. For me as a Software Engineer, I use …
What are Delegates in C#
A delegate in C# can be conpared to a function pointer in C and C++. It allows programmers to specify what the funtion to be …
Threading Tutorial in C# .Net – Part 1
In this lesson, we would cover the basics on threading in C# and how to implement threading in C#. Content Introduction to Threading The Thread …
How to Create a Software Test Plan
What is a Test Plan?An Software Test Plan or simply a Test Plan is a formal document containing details of the testing activities to be …
Top 10 Sure Automation Testing Interview Questions and Answers
It is important to note that if you will be sitting for an interview for an Automation Test Engineer, you can expect to be asked …
Learn Xml in C# Using Linq to Xml – Video Tutorials
These series of lesson teaches you how to read xml files into C# Using Linq to Xml. Tutorial 1: How to Read Xml File using …
Software Verification and Validation Topics – 2017
1a.The notion of Verification and Validation. Overview of typical verification and validation activities during software development. (L01a) This includes verification of requirement specification Modelling and …
The Static Keyword in C# – A Simple Explanation
In this lesson, we would examine the following sub-topics: What is the Static Keyword When is it Necessary to use the Static Keyword Example of …
What are Interfaces in C# and Java? A Simple Explanation
In this lesson we would cover the following: What are Interfaces? When can an Interface be used? Interface implementation example in C# Summary on Interfaces …
What are Abstract Classes? A Simple Explanation
Hello, good to see you here! Its good to know that you want to learn Java and be sure that you would find all you …
ASP.NET C# IN 24 DAYS COURSE OUTLINE
This is the course schedule for the ASP.NET C# in 24 days Course. You could always check the schedule for any changes. You may print …
How to Export MS Excel Data to MySQL Using MySQL Tools in Excel
This is a simple video on how to export MS Excel table to MySQL Databases; Get the Excel File Here: Watch the Video
Understanding Clustering (k-Means) in Machine Learning (Unsupervised Learning)
In this lesson we are going discuss clustering under the following topic: Introduction to Clustering Formalized Definition of k-Means Clustering 1-of-K Coding Scheme The Expectation …
How to Reduce Expected Loss in Classification (Machine Learning)
This lessons explains in simple terms how to minimize expected loss during classification.Remember that when an input variable is classified wrongly, a loss is incurred. …
How to Minimize Misclassifcation Rate in Classification (Machine Learning)
Remember that classification is a supervised learning concept that has to do with determining the the class a new input variable belongs.In trying to assign …
3 Approaches to Classification in Machine Learning
In this lesson, we would examine 3 approaches to classification. The first 2 would be based on the a priori knowledge of the probabilities. The …
Difference Between Software Engineer, Computer Programmer, Application Developer etc
You can watch the video of this explanation here: Video Many person in the field of IT don’t get as productive as they should be …
Best Short and Easy Java Tutorials – 2018(Learn Java Today)
This is a list of the very best Java Tutorials I’ve had to make. The reason I rate this tutorials high compared to other tutorials …
What is the Difference between Confirmatory and Exploratory Research
Today we will understand the concept of Confirmatory and Exploratory Research. In other words, we can say Confirmatory and Exploratory Data AnalysisWe begin with Confirmatory. …
Linear Models for Regression(Linear Basis Function Models)
Linear Models of Regression Video Updated Watch the Linear Regression Video Here… This article discusses the Linear Models of Regression with focus on Linear basis …
Best 23 Easy Tutorials on Artificial Intelligence, Pattern Recognition and Machine Learning
I have made a list of the best 20 easy lessons of various topic of Machine Learning, Pattern Recognition and Artificial Intelligence. Watch the Machine …
All You Need to Know About Cryptocurrency(How it Works)
I have done a little research on cryptocurrency recently and I would like share the outcome with you. The area I looked at included: the …
What is the Difference Between Classification and Clustering in Machine Learning
Today we will discuss the difference between two important topic that appear similar in machine learning. Classification and Clustering I have decided to create this …
Maximum Likelihood Estimation (MLE) in Machine Learning
What is Maximum Likelihood(ML)? and What is Maximum Likelihood Estimation (MLE)?These is a very important concept in Machine Learning and that is what we are …
Overview of Outlier Detection Techniques in Statistics and Machine Learning
Today we will discuss the concept of Outlier Detection in Statistics and Machine Learning and we would focus on the techniques used. We would cover …
Introduction of Recommender Systems
We would try to clearly explain the concept of a recommender system. What is a Recommender System A recommender system is a system that is …
What is the Difference between Classification and Regression
Today we will understand the difference between classification and regression. It would be a very short lesson but at the end it would be very …
What is the Difference Between Supervised and Unsupervised Learning?
Supervised learning and unsupervised learning are the two branches of Machine Learning.In my previous article Introduction to Machine Learning, I discussed the various categories and …
Bias/Variance Trade-off in Classification(Machine Learning)
In this lesson, you will learn about Bias/Variance Trade-off in Machine Learning. This is a concept in machine learning which refers to the problem of …
Introduction to Support Vector Machine (SVM)
Today we would give a clear and simple explanation of Support Vector Machines. We would discuss the basics of support vector machines in very clear …
7 Small Business Accounting Software Packages Every Business Should Know
A common interview question for accountants is ‘What accounting software packages do you know’ or ‘What Accounting Software Packages can you use’ or even ‘What …
Learn to Code as a Beginner(Coding is for Great Minds!)
Coding is fun! Have you heard this expression sometimes? Another one is, ‘coding is for the noble-minded’ or ‘coding is for the great minds’ or …
What is Over-fitting in Linear Regression and Machine Learning
In this short lesson, we will discuss the concept of over-fitting in Linear Regression. For now I would assume you have a basic knowledge of …
What is an Activation Function in Neural Networks
Activation Functions play a very important role in Neural Network so understanding them is key to getting a clearer understanding on how neural networks work. …
Intelligent Data Analysis Quetions and Answers Summary(2017)
1. PARADIGMS OF LEARNING Interpretation of ProbabilityProbability expresses uncertainty that an even may or may not occur and is a key concept in pattern recognition.Lets …
Basics of Backpropagation in Neural Networks(Machine Learning)
Backpropagation is the learning algorithm used in neural networks and is a generalization of the least mean squares algorithm used in linear perceptron. Backpropagation requires …
Basics of Multilayer Perceptron – A Simple Explanation of Multilayer Perceptron
Today we will understand the concept of Multilayer Perceptron. Recap of Perceptron You already know that the basic unit of a neural network is a …
Android Mobile App Development for Beginners with Android Studio
Its quite interesting to know that Mobile Application development is not as difficult as some may think. In fact, learning mobile app development may even …
Introduction to Gradient Decent in Neural Networks – Learn Machine Learning
In this lesson, we would examine the learning process in Neural Networks. Remember that a neural network is a classifier that could learn from a …
What is Perceptron? How the Perceptron Works
Today we will understand the concept of Perceptron. Basics of The PerceptronThe perceptron(or single-layer perceptron) is the simplest model of a neuron that illustrates how …
How to Start Building a Mobile App – The Tools You Need
Hello! Good to see your interest in learning! I am sure that with the effor you put, you will do great thing!Building a mobile app …
Verification and Validation During System Maintenance
Hello! Good to see you hereToday, we are going to discuss software verification and validation during the testing phase. During maintenance phase of the Software …
Source Code Based Test Case Generation
In this short and simple lesson, we are going to discuss techniques in carrying out source code based testing. Source code based testing is applied …
How to Connect Python to Excel – Read and Write Data (Try it!)
In this tutorial, we would examine how to use Python to create an excel csv file, write data into it, read records from the file …
How to Create a Simple Calculator in Python (Try it!)
In this lesson I would teach you how to create a simple calculator in the Python Programming Language. Python 3.6 is used in this tutorial, …
Software Module Testing (Unit Testing)
In this article, we would discuss the concept of Software Module Testing or Unit Testing. We would look at the various techniques applied in Software …
4 Reasons You Should not Study Computer Engineering – An Expert Explains
I have decided to write this article to provide some guidance to the teaming youths who every year face the choice of what direction to …
Program to Solve Simultaneous Equation in Python
For all lovers of the Python Programming Language, I would like to share a program to solve simultaneous equation(system of linear equation) in Python. I …
Criteria and Techniques for Verification of Software Architecture Design
The architecture of a system refers to the components of the system and the way they interact. This component includes both hardware and software components. …
Beware of Digital Marketers – 6 Secrets You Don’t Know!
I often cringe when I hear folk freely say they are digital marketers of digital marketing experts without actually considering all implications of what they …
Verification of Invariant Properties by Bounded Model Checking
Bounded model-checking is a technique applied in handling of large state space problems.The basic principle of bounded model-checking is that we do not handle the …
Verification of Software Requirement Specification: Criteria and Techniques
Verification of Software requirement specification involves evaluating the software against the following criteria: the functions should be specified and well-defined References are complete Tools and …
Basic Formalisms for Design Modelling
In this article we would discuss five basic formalism for design modelling. They are: Kripke Structure Kripke Transition System Labelled Transition System Finite State Automata …
5 Facts About Innosons Vehicle Manufacturing Co.(IVM)
I personally visited the location of the Innoson Vehicle Manufacturing Company since I always need to provide facts to my readers. So I have to …
Difference Between Software Verification and Software Validation
The two words are normally used side by side. But there is a clear difference between the two which we need to clearly know. This …
Google Adsense and Facebook – 5 Things You Should Know
I would tell you the realities from my own personal experience as a google Adsense user for over six years now.If you are and Adsense …
Is Sophia the Robot Worth the Noise?
Lately I’ve been reading about a “new breakthrough” in the field of Artificial Intelligence, that is Sophia the robot. I also heard so much in …
What is K-Means in Clustering in Machine Learning?
We are going to explain the basic concept of k-means clustering and the k-means clustering algorithm. Table of Content What is K-Means Clustering How it …
Introduction to Machine Learning (ML)
What really is machine learning? Let’s try to explain it in a way that everyone can easily understand and appreciate. Here we would define Machine …
Basics of Neural Networks in AI Artificial Intelligence
Watch the Video Lesson Here: Basic of Neural Networks, clearly explained. Concept of Neural Networks is not that difficult to understand by an average person …
Dimensionality Reduction and Principal Component Analysis (PCA)
More Detailed Video Explanation Here Video on How to Perform PCA in R here We would explain the concept of dimensionality reduction in a very …
Basics of Decision Theory – How Medical Diagnosis Apps Work
Watch the video here. In this lesson we would examine the following topics What is Decision Theory Application of Decision Theory in Cancer Diagnosis The …
Richardson’s Maturity Model for REST APIs
Today, you will learn the concept of Richardson’s Maturity Model(RMM), the key concept behind REST APIs. So, how do you measure if a web service …
Object Oriented Programming(OOP) Explained with Java Examples (Part 5)
In this lesson, we are going to discuss the concept of polymorphism in the Java programming language. What is PolymorphismPolymorphism means the ability to exist …
Object Oriented Programming(OOP) Explained with Java Examples (Part 4)
In this lesson we would examine the abstract keyword, how to use it and when to use it. What is Static KeywordThe static keyword is …
Object Oriented Programming(OOP) Explained with Java Examples (Part 3)
In this lesson, we are going to talk about Abstract Classes.But before we discuss abstract classes, let us consider a scenario like this: You have …
Object Oriented Programming(OOP) Explained with Java Examples (Part 2)
In the first part of the Object Oriented Programming lessons, you learnt: How to create classes How to create a subclass and inherit from a …
Object Oriented Programming(OOP) Explained with Java Examples (Part 1)
In this lesson, we would understand the idea of object oriented programming and then we would show some examples of how Object Oriented Programing works …
How to Setup Django 2.0 on Python 3.6 using virtualenv and pip
In this lesson, I will show you how to install Python 3.6 and set up Django 2.0 in 6 easy steps using virtualenv and pip. …
Connecting Netbeans to MS Access – Resolved Problems
In this blog, I am going to address some of the typical problems encountered by programmers who try to connect Netbeans to the MS Access …
How to Install and Setup Python With Django – Very Easy!
In this tutorial, I will teach you an easy way to set up Python and Django on Window. With Python, you can write and run …
Part 2: Java Calculator in NetBeans — Multi-digit, Layout & Error Handling (2026)
Updated July 5, 2026: Restructured with table of contents, +/- button code, division fix, and error handling. Completes the two-part Java calculator series — start …
Java For Beginners Lesson 3: Structure of a Java Program
This lesson follows from the Lesson 2 of the Java Programming Tutorial for Beginners. So if you have not gone through Lesson 1 and Lesson …
How to Build a Simple Calculator in Java Using NetBeans — Step by Step (2026)
Updated July 5, 2026: Restructured for clarity, added table of contents, FAQ answers, and links to Part 2. Screenshots and code reviewed for NetBeans 21+. …
Java Progamming For Beginners Lesson 2: Write Your First Java Program
This is Lesson 2 of the Java Programming Tutorials for Beginners, and in this Lesson, you would write your first Java Program. This lesson follows …
Ten Commandments of Computer Programming
I could tell you that the reason many have not become good computer programmers is that the fail to obey the rules of programming. This …
Java Progamming For Beginners Lesson 1: Introduction to Java and Intallation of Netbeans
This is the first part on the series of easy tutorials aimed to help Java beginner Java programmers to get up to speed in programming …
Interprocess Communication in Operating Systems – Part 1
Under Interprocess Communication in Operating Systems, we would examine the following sub-topics: Introduction to Interproces Communication Race Conditions Critical Sections Mutual Exclusion With Busy Waiting …
How to Use Mail Merge in Microsoft Word – Step By Step (Part 1)
I am going to teach you in a very simple and clear way how to use the MailMerge feature in Microsoft Word. What is Mail …
Schedulling and Resource Management in Operating Systems
I will explain this topic in a very simple and clear way. Modern computer systems consists of processors, memory, storage disks, terminals, network interfaces, printers …
How This Driverless(Metro) Train Works (Budapest)
It’s very interesting how you feel knowing that you are in a vehicle with over hundred other passengers but then, there is no driver or …
How to Download Your Facebook Friends List and Other Data
In this article, I would put you through on how you can download your Facebook friends list and other data you have on Facebook to …
How to Become a Computer Programmer – An Expert Advice
The interesting thing is that programming is not as tasking as it is portrayed in some books and online materials. The challenge is that programming …
Should I Buy Cryptocurrency(Coins)? – A Cryptocurrency Analyst’s Advice
Its very interesting to see how people quickly get involved in fund-related technologies. I have received this question a million times even when I provide …
3 Ways to Make Cheap/Free International Calls
I would tell you how to make international calls for lower cost than what you already have been doing. I learnt about these when I …
Data Analytics(DA) Becomes Intelligent Data Analytics(IDA)
If you are a researcher, then you in the right place. You must read this because of the need to keep trend with the developments …
Breakthrough! Fuel Cell Alternative for Cars
There have been ongoing research on Fuel Cell as an providing alternative energy source. This is especially needed in the field of vehicle manufacturing where …
Alternative to Batteries – Ultracapacitors
Have you thought of having something that can store energy just like batteries, but are not batteries? You guess right! Ultracapacitors. This is also called …
How Electric Vehicles Work
You are going to learn the basics of how Electric Vehicles work. There a whole lot of things we use everyday without knowing how they …
Introduction to Artificial Intelligence – AI
You need to have basic knowledge of AI. You don’t have to be a Tech Pro like me to understand the principles of AI. So, …
Hidden Facts About Nigeria’s Satellites – NigComSat
Since 2007, NigComSat have become a familiar word among Nigeria’s technology You need to understand a bit of what this is all about, whether you …
Big Data and Big Data Analytics Explained!
The term “Big Data” have become quite common in the field of modern Relational Database Management and Data Analysis and today there are so many …
Datarmatics Research Group
I’m going to tell you about this very important group you need to know about if you are member of the academia or engaged in …
5 Reasons You Need Project Management Skills
Everyone irrespective of field of study or level in career needs a basic knowledge of Project Management and I would tell you why in a …
The Banker’s Nightmare – Cryptocurrency
Similar Topics Five Things You Must Know About Cryptocurrency Blockchain Technology Explained-Part 1(The Estate) Blockchain Technology Explained-Part 2(Distributed Database Cryptocurrency – The Banker’s Nightmare Should …
Smart TV Explained! Do you really need a Smart TV?
Good to see you again and today we’ll be discussing the subject of Smart TV. I choose this topic because there’s been growth in the …
Blockchain Technology Explained (Part 2 – Distributed Database)
Hey, good to see you again. Let’s complete our discussion on The Blockchain Technology. Recall that in Part 1-The Estate, we gave a simple analogy …
How to Get Anybody’s Phone Number
Read This carefully before you continue Clearly note that I would not bear any responsibility with the outcome of how you use the phone number …
How to Check if Your Facebook Account Has Been Hacked
Check If Your Facebook Account Have Been Hacked! Please try to understand the steps. If it’s not clear, feel free to reach me. Hacker nowadays …
Blockchain Technology Explained (Part 1 – The Estate)
This analogy would help you understand the technology behind blockchain, just read carefully. Similar Posts Five Things You Must Know About Cryptocurrency Blockchain Technology Explained-Part …
Encapsulation, Inheritance and Polymorphism in Object Oriented Programming
These three concepts are sometimes considered as the building block of Object Oriented Programming(OOP). We cover the following: Encapsulation Inheritance Polymorhysim Virtual Methods 1. …
Stacks
Stacks are very important in the study of Data Structures. But in this article we would examine the basics of Stack Data Structure and how …
Arrays
Arrays are the most commonly used data structure in Computer Programming and is implemented in some way in almost all programming language. Definition: An array …
Introduction to Data Structures
The concept of Data Structures is a very important concept in modern computer science. So, in this course we would examine what data structure is …
Cryptocurrency – Five Things You Must Know!
Thanks you for stopping by. Cryptocurrency has been a trending topic recently: Bitcoin, BTC, Swisscoin, Giracoin, Ethereum an many more. The questions are: What does the future hold …
Compare C# and Scala Programming Languages – Part 2
This is the second part of our comparison between Scala and C# Programming Languages In this part we are going to examine: Arrays Declaration …
Compare C# and Scalar Programming Languages – Part 1
This is an assignment given to MSc. Students of the University of Port Harcourt as well as the Rivers State University of Science and Technology …