1. Why Ethics Matter in Data Analytics 87% of consumers distrust companies with their data (Cisco 2024). Ethical data practices:✅ Build trust✅ Avoid legal penalties (GDPR fines up to €20M)✅ Improve decision quality 2. Core Ethical Principles A. Privacy Protection Key …
sampling methods data validity! Why Sampling Methods Matter More Than Ever in 2025 57% of AI/ML failures stem from poor sampling (MIT Sloan). Your analysis is only as good as your sample’s validity. 3. Core Sampling Methods Explained A. Probability Sampling …
probability theory data analytics? 1. Foundations of Probability Theory Why Probability Matters in 2024 Analytics Probability theory forms the mathematical backbone of: Core Concepts Every Analyst Should Know A. Key Probability Distributions Distribution Formula Use Case Normal f(x) = (1/σ√2π)e^(-(x-μ)²/2σ²) Height/weight …
Statistical Inference is the process of drawing conclusions about a population from sample data, while quantifying uncertainty. It bridges raw data and actionable insights through mathematical frameworks. Why It Matters in 2025: Prevents “garbage in, gospel out” errors in analytics 83% of data-driven …
Organizations using analytics are 23x more likely to acquire customers (Harvard Business Review). Here’s how modern enterprises leverage data-driven decision making (DDDM) at scale: 1. The DDDM Maturity Spectrum Level Characteristics Example Reactive Gut-feel decisions “Let’s discount because competitors did” Descriptive Basic dashboards …
The OSEMN framework (Obtain, Scrub, Explore, Model, iNterpret) provides a battle-tested structure for data science projects. Used by 72% of top Kaggle competitors, this 5-step approach ensures nothing gets overlooked. 1. Obtain: Data Acquisition Modern Sources: Pro Tip: Always document data provenance – …
structured vs unstructured data? 80% of enterprise data is unstructured (IBM), yet most analytics tools are built for structured formats. Understanding these data types is crucial for modern analytics. 1. Key Characteristics Feature Structured Data Unstructured Data Format Tables (SQL), CSV …
Introduction Getting Started with Power BI for Data Analysis, Power BI is the #1 business intelligence tool (Gartner 2024), used by 75% of Fortune 500 companies. If you’re getting started with Power BI for data analysis, this guide covers: ✔ How to install Power …