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README.md

Defining Data

Introduction

Data are facts, information, observations and measurements that are used to make discoveries and to support informed decisions. A dataset, which is a collection of data may come in different formats and structures, and will usually be based on its source, ot where the data came from. For example, a company's monthly earnings might be in a spreadsheet but hourly heart rate data from a smartwatch may be in JSON format. It's common for data scientists to work with different types of data within a dataset.

This lesson focuses on identifying and classifying data by its characteristics and its sources.

Pre-Lecture Quiz

Pre-lecture quiz

How Data is Described

Raw Data

Numerical

Categorical

How Data is Structured

Structured Data

Semi-structured

Unstructured Data

Sources of Data

Internet

APIs

Scraping

Spreadsheets

🚀 Challenge

Post-Lecture Quiz

Post-lecture quiz

Review & Self Study

Assignment

Assignment Title