CompTIA Data+: DAO-001 Certification Guide

Learn data analysis essentials and prepare for the Data+ exam with this CompTIA exam guide, complete with practice exams towards the end.

Key Features

• Apply simple methods of data analysis and know when and how to apply more complicated methods.
• Take business requirements and produce a remote to the correct audience using appropriate visualizations
• Learn about the data governance rules, including quality and control

Book Description

CompTIA Data+ is an early-career data analytics certification for professionals tasked with developing and promoting data-driven business decision-making. Collecting, analyzing, and reporting on data can drive priorities and lead business decision-making. CompTIA Data+ validates certified professionals have the skills required to facilitate data-driven business decisions. With this guide, you'll understand how to prepare, analyze and report the data for better insights.

You will start with an introduction to Data+ certification exam format and then quickly dive into prepare data. you will learn about collecting the data, cleaning and processing the data along with data wrangling and manipulation. Moving ahead you will learn to analyze data where we will talk about types of analysis, common techniques hypothesis techniques and statistical analysis. We then will move to reporting the data. we will lean about the types of report common visualizations and data governance. Later, you will be testing all the knowledge you've gained throughout the book with the help of mock tests.

By the end of this book, you'll have covered everything you need to pass the AWS certification exam DBS-C01 and have a handy, on-the-job desk reference guide.

What you will learn

• Get well versed with the five domains covered in the DAO-001 exam
• Learn the major concepts covered in the exam and when to apply them
• Understand the fundamental concepts behind ETL and ELT
• Learn various imputation and deletion methods to deal with missing data
• Identify and deal with outliers
• Learn and perform hypothesis testing
• Create insightful reports

Who This Book Is For

If you are a data analyst looking to get certified with DAO-001 exam this is the book for you. This CompTIA book is also ideal for who needs help in entering the quickly growing field of Data Analytics and are seeking professional certifications.

Table of Contents

1. Introduction to Data +
2. Data Structures, Types, and Formats
3. Collecting Data
4. Cleaning and Processing Data
5. Data Wrangling and Manipulation
6. Types of Analysis
7. Measures of Central Tendency and Dispersion
8. Common Techniques in Descriptive Statistics
9. Hypothesis Testing
10. Introduction to Statistical Analyses
11. Types of Reports
12. Turning a Question into a Report
13. Common Visualizations
14. Data Governance
15. Data Quality and Management
16. Practice Exam One
17. Practice Exam Two