Data Insights Search Results

How To: Understand mean and standard deviation

Keith M. Bower explains the meaning of mean and standard deviation. This educational video gives insight in the basics of statistics. The relations between population mean and sample mean and between population standard deviation and sample standard deviation are explained. The mean gives an idea on the central tendency. Standard deviation gives an idea about how spread out the data are. Keith also explains how these two parameters, the joint sufficient statistics, define a normal distributio...

News: Downloads for Encrypted Messaging App Signal Have Almost Doubled Since Trump Took Office

Signal, the encrypted messaging app, has seen 1.4 million downloads in just the first quarter of 2017—roughly twice the downloads it received in the same period last year. Rani Molla at Recode attributes this to Donald Trump's inauguration, as the private messaging service saw a 40% increase in US downloads between Election Day and the end of the first quarter of 2017.

How To: Multiply algebraic fractions

This video offers some insight into a few more difficult concepts of mathematics by teaching you how to multiply algebraic fractions. Given polynomials in fraction form, you should first try to factor all your polynomials into their simplest form in the hopes that some factors will be able to cancel each other out. After performing these steps, you can then combine your factored polynomials together in order to get your final product. The various examples provided in this video will offer goo...

How To: Take photographs like Gregory Crewdson

In this Ovation TV original special, acclaimed photographer Gregory Crewdson shares with us his insight into his photographic techniques. Like a film, he uses a lot of production, a lot of lighting, a lot of set design. He is an American photographer best known for elaborately staged, surreal scenes of American homes and neighborhoods. Learn how to take pictures like this master artist.

How To: Tie a genoese zipper sinnet knot easily

The Genoese Zipper Sinnet is actually a fusion of both the single Genoese Bar and the Zipper Sinnet, obvious reasons for the name. This knot can be great for making a strap, bracelet, or necklace. In this video you will learn how to tie the knot up close and personal, giving the video great detail and insight into the knot tying process.

How To: Massage data in Houdini 10

Get a crash course on HScript Expressions, Variables, and Attributes in Houdini 10. If you don't even know what this means, then you probably need to check this video tutorial series out. Understanding how to massage data in Houdini is key to giving yourself the creative edge and allowing you to unleash mind-blowing visual effects. This 18-part video series covers a variety of simple yet essential weapons in your arsenal including Global, Standard and Custom Variables to Math and String Modif...

How To: Solve the Rubik's Cube cross faster than anyone

Want to be fast at solving the cross of the Rubik's Cube, like two or three seconds fast? Well, this video tutorial will show you how to solve the Rubik's Cube cross faster than anyone. These insights into how to make the cross will no doubt make you a great speedcuber. Just pay attention to the orientation and the rest of these Rubiks Cube cross tips and tricks.

How To: Enter Excel data into cells with drop down menus

In this video tutorial, viewers learn how to create drop down menus in Microsoft Excel. This task is very easy, fast and easy to do. Begin by highlighting a desired cell. Then click on the Data tab and click on Data Validation under Data Tools. When the Data Validates window opens, click on the Error tab and deselect "Show error alert after invalid data is entered". Then click on OK. Now simply type in the data into the selected cell. This video will benefit those viewers who use Microsoft Ex...

How To: Use the Advanced Filter tool to extract data in Excel

Whether you're interested in learning Microsoft Excel from the bottom up or just looking to pick up a few tips and tricks, you're in the right place. In this tutorial from everyone's favorite digital spreadsheet guru, ExcelIsFun, the 19th installment in his "Highline Excel Class" series of free video Excel lessons, you'll learn about using Advanced Filter to extract data from an Excel List/Table/Database. See these 7 Advanced Filter examples:

How To: Build a simple Core Data application in Mac OS X

Core Data is a powerful data-management framework introduced with Mac OS X v10.4 Tiger. When you take advantage of Core Data, it slashes the amount of custom code you need to write in order to manage application data. Opening, saving and undo management can all be handled by Core Data, freeing you to concentrate on creating unique features for your application. This video tutorial, which presents a general introduction to using Core Data, will walk you through the process of building a simple...

How To: Group quantitative data in Microsoft Excel

If you use Microsoft Excel on a regular basis, odds are you work with numbers. Put those numbers to work. Statistical analysis allows you to find patterns, trends and probabilities within your data. In this MS Excel tutorial from everyone's favorite Excel guru, YouTube's ExcelsFun, the 32nd installment in his "Excel Statistics" series of free video lessons, you'll learn how to group when the quantitative data are whole numbers, integers or discrete data and how to group when the quantitative ...

How To: Create a two-variable data table in Microsoft Excel

New to Microsoft Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. In this MS Excel tutorial from ExcelIsFun, the 255th installment in their series of digital spreadsheet magic tricks, you'll learn how to create a two-variable data table in Excel for what-if analysis. See the PMT function and learn about the formula equivalent to a data table.

How To: Filter data using MS Excel 2010's PivotTable slicer

This video shows how to make a quick pivot table data filtering by using Excel 2010's ‘Slicer’ functionality. ‘Slicer’ delivers enhanced visual filtering method to allow you to get the data you need more quickly. When selecting a cell in the pivot table you will find ‘Slicer’ in the filter group of the ‘Insert’ tab. Click on ‘Slicer’ and an 'Insert Slicer' dialogue shows up where you can pick particular data fields from the slider list. Once you click on ‘OK’, the ‘Slicer’ objects with filter...

How To: Completely erase a computer hard drive to remove all private data

Data thieves don't have to be programming wizards to get their hands on your personal information. They often find hard drives that contain financial and other sensitive data at flea markets, charity shops, the city dump—even on eBay. In this video tutorial, PC World explains how to completely erase sensitive data from old drives before recycling or discarding them. Wipe your old hard drives with this how-to.

Prev Page