What is a statistical study?

A statistical study is an investigation that uses quantitative methods to collect, analyze, and interpret data to make informed decisions or draw conclusions. It aims to understand trends, relationships, and patterns within a specific context, often using a larger population sample. To help you better understand this concept, think of a statistical study as a […]

What is the Open Data Movement?

The ‘open data movement’ is an initiative that promotes the accessibility and availability of data to the public. It encourages governments, organizations, and institutions to share their data in a format that is easy to access, use, and understand. The goal is to enable greater transparency, collaboration, and innovation by providing open access to valuable […]

What are common SQL errors in data analysis and how do you troubleshoot them?

Imagine you are working on a sales analysis project for a retail store. You’ve been given access to their sales database, which contains tables for customers, products, and sales transactions. Your goal is to gain insights into customer preferences, product performance, and overall sales trends.  In this scenario, you might encounter the following common SQL […]