Analytics COE Team: Roles & Responsibilities

data analytics center of excellence roles and responsibilities

Data analytics Centers of Excellence (CoEs) are the key to unlocking a company’s full potential with data. As a business leader, you know how important it is to stay ahead of the curve and have access to timely, accurate analytics that can help inform decisions. But having access to this data isn’t enough—you need an experienced team in place who understand the nuances of data analytics, can develop models and uncover insights that drive business decisions. That’s where data analytics CoEs come in. In this blog post, we’ll explore the roles and responsibilities of staff members in data analytics CoEs, as well as their importance in enabling organizations by delivering …

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Statistics Terminologies Cheat Sheet & Examples

probability distribution histogram

Have you ever felt overwhelmed by all the statistics terminology out there? From sampling distribution to central limit theorem to null hypothesis to p-values to standard deviation, it can be hard to keep up with all the statistical concepts and how they fit into your research. That’s why we created a Statistics Terminologies Cheat Sheet & Examples – a comprehensive guide to help you better understand the essential terms and their use in data analysis. Our cheat sheet covers topics like descriptive statistics, probability, hypothesis testing, and more. And each definition is accompanied by an example to help illuminate the concept even further. Understanding statistics terminology is critical for data …

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Difference between Probability & Statistics

difference between probability and statistics

Are you confused about the difference between probability and statistics? You are not alone! Many struggle to determine the key distinctions between these two closely related topics. In this blog, we will discuss the major differences between probability and statistics with the help of examples, as well as how they are used in the field of data science. By understanding the nuances between probability and statistics, you will be able to use these concepts appropriate when solving data science related problems. So here we go! Probability & Statistics Difference – By Example Take a bag of marbles. You got your hand in the bag blindly and grabbed a handful of …

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Machine Learning Bias Explained with Examples

machine learning models bias variance vs complexity

In the artificial intelligence (AI) / machine learning (ML) powered world where predictive models have started getting used more often in decision-making areas, the primary concerns of policy makers, auditors and end users have been to make sure that these systems using the models are not making biased/unfair decisions based on model predictions (intentional or unintentional discrimination). Imagine industries such as banking, insurance, and employment where models are used as solutions to decision-making problems such as shortlisting candidates for interviews, approving loans/credits, deciding insurance premiums etc. How harmful it could be to the end users as these decisions may impact their livelihood based on biased predictions made by the model, thereby, …

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Geometric Distribution Concepts, Formula, Examples

Geometric Distribution Example

Geometric Distribution, a widely used concept in probability theory, is used to represent the probability of achieving success or failure in a series of independent trials, where the probability of success remains constant. It is one of the essential tools used in a wide range of fields, including economics, engineering, physics, and statistics. As data scientists / statisticians, it is of utmost important to understand its concepts and applications in a clear manner. In this blog, we will introduce you to the basics of Geometric distribution, starting with its definition and properties. We will also explore the geometric distribution formula and how it is used to calculate the probability of …

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Data value chain: Framework, Concepts

data value chain framework

As organizations become increasingly data-driven, understanding the value of data is critical for success. The data value chain framework helps to identify and maximize the value of data by breaking it down into its components. In this post, we will explain what a data value chain is, why it’s important, and how to implement it. Data Value Chain Framework: Key Stages The data value chain (DVC) is a business model that helps organizations understand how to create, manage and utilize their data assets in order to realize maximum business value based on using them. It breaks down the various stages of an organization’s entire journey with its data into distinct …

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Leading & Lagging KPIs – Concepts & Examples

kpi concepts and examples leading lagging KPIs

Key performance indicators (KPIs) are important for any organization. They measure the success or failure of initiatives, projects and products with specific metrics and can be used to make informed decisions about future strategies. However, there is no one single definition of what a KPI is; instead, they come in many forms. KPIs are key metrics for product and project managers and are used to track the success of products and projects. This blog post will explore two types of KPIs – leading KPIs and lagging KPIs – as well as provide some examples. What are KPIs? KPIs are defined as a quantitative measure that indicates the performance of a …

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Data Analysis Types: Concepts & Examples

different types of data analysis

Data analysis plays an important role in understanding the world, discovering trends, and making decisions. Having a good understanding of the different types of data analysis available is essential for anyone looking to make sense of their data. In this blog post, we’ll discuss the six different forms of data analysis and provide examples of each type so you can get a better idea of how they work. The following is a representation of six forms of data analysis. Before getting ahead and understand different form of analysis, lets understand what is Data Analysis? The word “analysis” comes from the Ancient Greek ἀνάλυσις (analysis, “a breaking-up” or “an untying;” from …

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Data Quality Characteristics & Examples

Data quality characteristics and examples

It is no secret that data is an essential component in the day-to-day operations of businesses—as well as the decision making processes. To ensure trust and reliability on the data, organizations must pay close attention to the quality of their data. In this blog post, we will discuss some of the key characteristics that make up quality data, diving into each characteristic and providing examples along the way. Good data governance strategies are also essential for maintaining high quality datasets across an organization’s entire IT infrastructure. These strategies include quality control processes for entering new data into the system; establishing internal documents with procedures for validating all incoming information; assigning …

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Ensemble Methods in Machine Learning: Examples

voting ensemble method

Machine learning models are often trained with a variety of different methods in order to create a more accurate prediction. Ensemble methods are one way to do this, and involve combining the predictions of several different models in order to get a more accurate result. When different models make predictions together, it can help create a more accurate result. Data scientists should care about this because it can help them create models that are more accurate. In this article, we will look at some of the common ensemble methods used in machine learning. Data scientists should care about this because it can help them create models that are more accurate. …

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CART Decision Tree Python Example

CART Decision Tree CLassifier

The Classification and Regression Tree (CART) is a supervised machine learning algorithm used for classification, regression. In this blog, we will discuss what CART decision tree is, how it works, and provide a detailed example of its implementation using Python. What is CART & How does it work? CART stands for Classification And Regression Tree. It is a type of decision tree which can be used for both classification and regression tasks based on non-parametric supervised learning method. The following represents the algorithm steps. First and foremost, the data is split into training and test set.  Take a feature K and split the training data set into two subsets based on …

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Decision Tree Concepts, Examples, Interview Questions

Decision tree is one of the most commonly used machine learning algorithms which can be used for solving both classification and regression problems. It is very simple to understand and use. Here is a lighter one representing how decision trees and related algorithms (random forest etc) are agile enough for usage.   In this post, you will learn about some of the following in relation to machine learning algorithm – decision trees vis-a-vis one of the popular C5.0 algorithm used to build a decision tree for classification. In another post, we shall also be looking at CART methodology for building a decision tree model for classification. The post also presents a …

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Two-way ANOVA Test: Concepts, Formula & Examples

two-way ANOVA test formula

The two-way analysis of variance (ANOVA) test is a powerful tool for analyzing data and uncovering relationships between a dependent variable and two different independent variables. It’s used in fields like psychology, medicine, engineering, business, and other areas that require a deep understanding of how two separate variables interact and impact dependent variable. With the right knowledge, you can use this test to gain valuable insights into your data. Through a two-way ANOVA, data scientists are able to assess complex relationships between multiple variables and draw meaningful conclusions from the data. This helps them make informed decisions and identify patterns in the data that may have gone unnoticed otherwise. Let’s …

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Population & Samples in Statistics: Examples

characteristics of a sample

In statistics, population and sample are two fundamental concepts that help us to better understand data. A population is a complete set of objects from which we can obtain data. A population can include all people, animals, plants, or things in a given area. On the other hand, a sample is a subset of the population that is used for observation and analysis. In this blog, we will further explore the concepts of population and samples and provide examples to illustrate the differences between them in statistics. What is a population in statistics? In statistics, population refers to the entire set of objects or individuals about which we want to …

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Bayesian thinking & Real-life Examples

Bayesian thinking and real-life examples

Bayesian thinking is a powerful way of looking at the world, and it can be useful in many real-life situations. Bayesian thinking involves using prior knowledge to make more accurate predictions about future events or outcomes. It is based on the Bayes theorem, which states that the probability of an event occurring is determined by its prior probability combined with new information as it becomes available. It is important for data scientists to learn about Bayesian thinking because it can help them make accurate predictions and draw more meaningful insights from data. In this blog post, we will discuss Bayesian thinking and provide some examples from everyday life to illustrate …

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