- [Voiceover] Once you have your data, the first thing…you need to do is see what's there.…The best way to do that is with exploratory graphs.…Specifically, you can get a feel for the data,…you can check the assumptions for your planned analysis,…you can check for anomalies,…and you can see if the data suggests something new…and unexpected to you.…All of this together let's you know…whether your planned analysis…is appropriate, and whether you are going to be able…to justifiably reach the kind of conclusions that you want.…
Now, one question is: why start with graphics?…It's because graphics because they are a visual,…are information dense.…They communicate so much more, so much faster,…in a way that humans are very good at.…Because humans are visual.…Graphs are also the quickest way…to check for shape of the distribution,…gaps and outliers.…All of which can have a significant impact on your analysis.…Now in terms of exploration,…there's a few things you want to do.…You want to start with single distributions…or univariate distributions, one variable at a time.…
- Assess the skills required for a career in data science.
- Evaluate different sources of data, including metrics and APIs.
- Explore data through graphs and statistics.
- Discover how data scientists use programming languages such as R, Python, and SQL.
- Assess the role of mathematics, such as algebra, in data science.
- Assess the role of applied statistics, such as confidence intervals, in data science.
- Assess the role of machine learning, such as artificial neural networks, in data science.
- Define the components of effective data visualization.
Skill Level Beginner
1. What Is Data Science?
2. Fields of Study
Ethical issues2m 39s
4. Data Sources
5. Data Exploration
8. Applied Statistics
9. Machine Learning
Next steps2m 17s
- Mark as unwatched
- Mark all as unwatched
Are you sure you want to mark all the videos in this course as unwatched?
This will not affect your course history, your reports, or your certificates of completion for this course.Cancel
Take notes with your new membership!
Type in the entry box, then click Enter to save your note.
1:30Press on any video thumbnail to jump immediately to the timecode shown.
Notes are saved with you account but can also be exported as plain text, MS Word, PDF, Google Doc, or Evernote.