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How To: Find the variance of differences of random variables in statistics

From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps. For all of the details, watch this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, we learn how to calculate the variance of differences of random variables.

How To: Do hypothesis testing with a large sample proportion in statistics

Learn how to do large-sample-proportion hypothesis testing in stats! From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps. For all of the details, watch this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials.

How To: Do a small-sample hypothesis test in statistics

Need a hand figuring out how to do small-sample hypothesis testing in stats? From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps. For all of the details, watch this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials.

How To: Work with z-scores and t-statistics in statistics

Learn about the difference between z- and t-statistics with this video guide. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps. For all of the details, watch this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials.

How To: Use the string class when programming in C++

Want to know how to use the string Class in C++? Let this video be your guide. Whether you're new to Microsoft's popular general-purpose programming language or a seasoned programmer merely looking to brush up on the basics, you're sure to find much to take away from this helpful video lesson. For all of the details, take a look.

How To: Store text in an array when programming in C++

Interested in storing text in an array within C++? Let this video be your guide. Whether you're new to Microsoft's popular general-purpose programming language or a seasoned programmer merely looking to brush up on the basics, you're sure to find much to take away from this helpful video lesson. For all of the details, take a look.

How To: Create and use char arrays when using C++

Want to create a char array in your next C++ project? Let this video be your guide. Whether you're new to Microsoft's popular general-purpose programming language or a seasoned programmer merely looking to brush up on the basics, you're sure to find much to take away from this helpful video lesson. For all of the details, take a look.

How To: Create an admin user CRUD in Ruby on Rails 3

In this free video programming lesson, we learn how to create an admin user CRUD in Ruby on Rails 3. Whether you're entirely new to Ruby on Rails 3 or are a seasoned developer merely looking to brush up on a few of the basics, you're sure to find much to take away. For all of the details, watch this quality video guide from the folks at Lynda.

How To: Apply stylesheets when using Ruby on Rails 3

In this free video programming lesson, we learn how to use stylesheets within Ruby on Rails 3. Whether you're entirely new to Ruby on Rails 3 or are a seasoned developer merely looking to brush up on a few of the basics, you're sure to find much to take away. For all of the details, watch this quality video guide from the folks at Lynda.

How To: Observe good macro security practices when using Word for Mac 2011

Want to know how to keep safe when using macros in Word for Mac 2011? This video will show you how it's done. Whether you're new to Microsoft's popular word processing application, new to MS Word 2011 or even an expert merely looking to brush up on the fundamentals, you're sure to be well served by this quality video tutorial from the folks at Lynda. For detailed, step-by-step instructions, watch the video.

How To: Print to a PDF file in Microsoft Word for Mac 2011

Want to know how to save a Word for Mac 2011 document as a PDF file? This video will show you how it's done. Whether you're new to Microsoft's popular word processing application, new to MS Word 2011 or even an expert merely looking to brush up on the fundamentals, you're sure to be well served by this quality video tutorial from the folks at Lynda. For detailed, step-by-step instructions, watch the video.

How To: Add comments to a document in Microsoft Word for Mac 2011

Want to know how to create annotated docs in Word for Mac 2011? This video will show you how it's done. Whether you're new to Microsoft's popular word processing application, new to MS Word 2011 or even an expert merely looking to brush up on the fundamentals, you're sure to be well served by this quality video tutorial from the folks at Lynda. For detailed, step-by-step instructions, watch the video.

How To: View an outline in Microsoft Word for Mac 2011

Want to know how to read outlines within Word for Mac 2011? This video will show you how it's done. Whether you're new to Microsoft's popular word processing application, new to MS Word 2011 or even an expert merely looking to brush up on the fundamentals, you're sure to be well served by this quality video tutorial from the folks at Lynda. For detailed, step-by-step instructions, watch the video.

How To: Apply slide transition effects to a PowerPoint for Mac 2011 presentation

Want to know how to use slide transition effects within PowerPoint for Mac 2011? This video will show you how it's done. Whether you're new to Microsoft's popular word digital slideshow application, new to MS PowerPoint 2011 or even an expert merely looking to brush up on the fundamentals, you're sure to be well served by this quality video tutorial from the folks at Lynda. For detailed, step-by-step instructions, watch the video.

How To: Create and use outlines in Microsoft PowerPoint for Mac 2011

Want to know how to use outlines within PowerPoint for Mac 2011? This video will show you how it's done. Whether you're new to Microsoft's popular word digital slideshow application, new to MS PowerPoint 2011 or even an expert merely looking to brush up on the fundamentals, you're sure to be well served by this quality video tutorial from the folks at Lynda. For detailed, step-by-step instructions, watch the video.

How To: Use and assign categories in Microsoft Outlook for Mac 2011

Interested in sorting your mail with Outlook's categories feature? This video will show you how it's done. Whether you're new to Microsoft's popular word processing application, new to MS Outlook 2011 or even an expert merely looking to brush up on the fundamentals, you're sure to be well served by this quality video tutorial from the folks at Lynda. For detailed, step-by-step instructions, watch the video.

How To: Synchronize contacts within Microsoft Outlook for Mac 2011

Want to know how to synch contacts within MS Outlook for 2011? This video will show you how it's done. Whether you're new to Microsoft's popular word processing application, new to MS Outlook 2011 or even an expert merely looking to brush up on the fundamentals, you're sure to be well served by this quality video tutorial from the folks at Lynda. For detailed, step-by-step instructions, watch the video.

How To: Preview and save emails in Microsoft Outlook for Mac 2011

Want to know how to preview and save your emails in MS Outlook for Mac 2011? This video will show you how it's done. Whether you're new to Microsoft's popular word processing application, new to MS Outlook 2011 or even an expert merely looking to brush up on the fundamentals, you're sure to be well served by this quality video tutorial from the folks at Lynda. For detailed, step-by-step instructions, watch the video.

How To: Navigate and use the Outlook for Mac 2011 user interface

Need some help making sense of the Outlook 2011 Ribbon UI? This video will show you how it's done. Whether you're new to Microsoft's popular word processing application, new to MS Outlook 2011 or even an expert merely looking to brush up on the fundamentals, you're sure to be well served by this quality video tutorial from the folks at Lynda. For detailed, step-by-step instructions, watch the video.

How To: Split or freeze a row or column in Microsoft Excel 2011

Need to know how to split and freeze columns in Excel 2011? Whether you're new to Microsoft's popular digital spreadsheet application, new to Excel 2011 or even an expert merely looking to brush up on the fundamentals, you're sure to be well served by this quality video tutorial from the folks at Lynda. For all of the details, and to get started splitting and freezing rows and columns in your own MS Excel '11 projects, watch the video.

How To: Get rid of an ant problem as a homeowner

Need some help figuring out how to deal with an ant problem? Let this video be your guide. It's easy! So easy, in fact, that this clip can present a complete overview in about two minutes' time. For all of the details, and to get started dealing with your own ant problem, watch this video guide.