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# Data Analysis Tutorials

Get insights on the latest tools & methods that you can use to analyze your data more effectively. Our data analysis tutorials will help you develop your skills.
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## Poisson Distribution: A Comprehensive Guide

The Poisson distribution models the probability of a certain number of events occurring within a fixed interval. See how it's applied in real-world scenarios like queueing theory and traffic modeling.

Vinod Chugani

September 11, 2024

## Winsorized Mean: A Robust Approach to Handling Outliers

A winsorized mean reduces the influence of outliers by capping extreme values at specific percentiles, preserving the overall structure of the dataset. Read further to learn how to calculate the winsorized mean using Python for hands-on practice.

Arunn Thevapalan

September 10, 2024

## How to Use Goal Seek in Excel: A Guide with Real Examples

Simplify your data models with Excel’s Goal Seek, one of its powerful What-If Analysis tools. Solve real-world problems like loan payments and revenue targets.

Arunn Thevapalan

September 5, 2024

## Tableau Pie Chart: Your Go-To Guide

Create compelling pie charts in Tableau with clear step-by-step instructions for importing data, adjusting sizes, and customizing colors. Discover advanced methods like grouping categories and adding filters.

Islam Salahuddin

September 4, 2024

## SQL LEFT JOIN vs. LEFT OUTER JOIN: What You Need to Know

LEFT JOIN and LEFT OUTER JOIN in SQL are identical, with no functional difference between them. Keep reading to explore practical examples and discover how to apply these joins effectively in your queries.

Vikash Singh

August 30, 2024

## How to Compare Two Columns in Excel: A Step-by-Step Guide

Learn how to compare two columns in Excel for matches and for duplicates using methods like the equals operator, IF() function, EXACT(), VLOOKUP(), and more.

Laiba Siddiqui

August 29, 2024

## Excel Substring Techniques: Extract and Format Text

Learn how to extract and format text position or delimiter using Excel substring functions, including LEFT(), RIGHT(), MID(), and more, with step-by-step instructions.

Laiba Siddiqui

August 29, 2024