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How To: Solve population proportion problems 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. With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to solve pop. proportion problems in stats.

How To: Calculate the confidence interval for difference between means

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. With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to find the CI for the difference between means.

How To: Calculate the sampling distribution of difference between means

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. With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to find the sampling distribution for the difference between means.

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: 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: Calculate stock value based on the value of future dividend cash flow in Excel

As you might guess, one of the domains in which Microsoft Excel really excels is finance math. Brush up on the stuff for your next or current job with this how-to. In this tutorial from everyone's favorite digital spreadsheet guru, YouTube's ExcelIsFun, the 61st installment in his "Excel Finance Class" series of free video lessons, you'll learn how to calculate the value of a stock based on the present value of a future dividend cash flow.

How To: Chart assumed constant growth rate changes in Microsoft Excel

As you might guess, one of the domains in which Microsoft Excel really excels is finance math. Brush up on the stuff for your next or current job with this how-to. In this tutorial from everyone's favorite digital spreadsheet guru, YouTube's ExcelIsFun, the 64th installment in his "Excel Finance Class" series of free video lessons, you'll learn how to chart assumed constant growth rate changes in Excel.

How To: Value a stock with irregular dividend payments in Microsoft Excel

As you might guess, one of the domains in which Microsoft Excel really excels is finance math. Brush up on the stuff for your next or current job with this how-to. In this tutorial from everyone's favorite digital spreadsheet guru, YouTube's ExcelIsFun, the 67th installment in his "Excel Finance Class" series of free video lessons, you'll learn how to calculate the value of a stock with irregular dividend payments,

How To: Calculate interest revenue and interest expense in Microsoft Excel

As you might guess, one of the domains in which Microsoft Excel really excels is finance math. Brush up on the stuff for your next or current job with this how-to. In this tutorial from everyone's favorite digital spreadsheet guru, YouTube's ExcelIsFun, the 58th installment in his "Excel Finance Class" series of free video lessons, you'll learn how to calculate interest revenue and expense.

How To: Organize palettes when using AutoCAD 2011 on a Mac

Organize your AutoCad 2011 palettes! This clip will teach you everything you'll need to know. Whether you're new to Autodesk's popular 3D drafting application or a seasoned professional just looking to better acquaint yourself with the newest iteration of the program, you're sure to be well served by this video tutorial. For more information, including step-by-step instructions, watch this free video guide.

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: Calculate mean and variance for a Bernoulli distribution

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 (or just study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to calculate mean and variance for a Bernouilli distribution.

How To: Calculate mean & variance when given a Bernoulli distribution 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 (or just study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to calculate the mean and variance of a Bernouilli distribution.

How To: Read song chord charts as a ukulele player

In this clip, we learn how to employ chord charts when playing the uke. Thinking about learning the ukulele? Well, you're in luck, as, thanks to WonderHowTo's ever-growing library of free video ukulele lessons, it's never been easier. For more information, including detailed, step-by-step instructions, and to get started tuning your own ukulele by ear take a look.

How To: Use different strumming methods when playing the ukulele

In this clip, we learn a number of simple uke strumming patterns. Thinking about learning the ukulele? Well, you're in luck, as, thanks to WonderHowTo's ever-growing library of free video ukulele lessons, it's never been easier. For more information, including detailed, step-by-step instructions, and to get started tuning your own ukulele by ear take a look.

How To: Tune the strings of a ukulele by ear

In this clip, we learn how to tune a uke by ear. Thinking about learning the ukulele? Well, you're in luck, as, thanks to WonderHowTo's ever-growing library of free video ukulele lessons, it's never been easier. For more information, including detailed, step-by-step instructions, and to get started tuning your own ukulele by ear take a look.

How To: Do an easy false cut when performing card tricks

In this video tutorial, we learn how to perform a simple-but-effective false cut when doing sleight-of-hand card tricks. For more information about the technique and its execution, including detailed, step-by-step instructions, and to get started incorporating this cut into your own routines, watch this free video card-magic lesson.

How To: Perform the "Symmetry" card flourish trick

In this video tutorial, we learn how to perform the "Symmetry" card flourish. For more information about the trick and its execution, including detailed, step-by-step instructions, and to get started incorporating this flourish into your own routines, watch this free video card trick magic lesson.

How To: Perform the "The Ten of Hearts" card trick

In this video tutorial, we learn how to perform the "The Ten of Hearts" (or "TheTenofHearts") card trick. For more information about the trick and its execution, including detailed, step-by-step instructions, and to get started incorporating this trick into your own routines, watch this free video card magic lesson.

How To: Perform the "The Deck Knows" card trick

In this video tutorial, we learn how to perform the "The Deck Knows" card trick. For more information about the trick and its execution, including detailed, step-by-step instructions, and to get started incorporating this trick into your own routines, watch this free video card magic lesson.

How To: Perform the "Force Factor" card trick

In this video tutorial, we learn how to perform the "Force Factor" card trick. For more information about the trick and its execution, including detailed, step-by-step instructions, and to get started incorporating this trick into your own routines, watch this free video card magic lesson.