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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: 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: Find sample 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 sample distribution in statistics.

How To: Use Lloyd Banks drum samples in FL Studio

In this video, we learn how to use Lloyd Banks drum samples in FL Studio. You can get the Lloyd Banks drum samples from: Class4beats. Start off by making various different types of drums tat you like using the drum kit on the left hand side toolbar. Put on a pattern and then listen to how it sounds. After you add this, you can change the tempo and volume of each of the drums to make it sound exactly how you want it. Make it up as you go along to change the drum sounds and when you're finished...

How To: Graph x squared & the square root of x

In this video the instructor shows how to sketch the graph of x squared and square root of x. The first equation is the x squared which is y = x * x. Now to sketch this take a sample values of x and substitute in the equation to get the value of y. Similarly find the set of points for the equation. Finally plot these points and sketch this graph which is in the form of a parabola. The curve is in the form of alphabet 'U' with its vertex at the bottom. Now similarly take the square root of x e...

How To: Convert temperature using y = mx + b

In this video the instructor shows how to do temperature conversions using y = m*x + b. Now if Celsius is represented by the variable C and Fahrenheit is represented by the symbol F, you can replace then in the previous equation in place of the variables x and y giving you the equation C = m*F + b. Now to solve for the values of the constants m and b you need to have values of two sample temperatures in both Celsius and Fahrenheit. Take the first sample and substitute in the above equation gi...

How To: Add effects to your beats in FL Studio

In this video tutorial from PrimeLoops, host Nick, teaches you how to create a beat, using beatbox samples, in FL Studio. You will learn how to drag samples from the browser interface to the channel interface, so that you can use them. As you follow along, Nick shows you how to lay down a beat, add effects to the sounds, how to re-level sounds to compensate for clipping in the peaks of the track, as well as how to automate some of the parameters.

How To: Chop up orchestral loops in FL Studio

This how to video describes how to use Fruity Loops to chop up orchestral loops and integrate them into your project. First you take a sample and adjust the knobs on the Fruity Loops interface to achieve the desired result. This video is great for anyone who is learning Fruity Loops Studio or simply learning how to create songs from smaller orchestral samples. The video itself lasts about ten minuets and will help you achieve the musical prowess you desire.

How To: Improve your handwriting

Have you been typing at computers for so long that your handwriting has become unreadable? Follow these steps to make your handwriting beautiful again. This Howcast guide demonstrates how to improve your handwriting - just follow the steps!

How To: Identify problems with heat scorch on roses

John White and Rosemary Maddox address garden problems concerning heat and sun damage on their plants. Rosemary grows tomatoes that grow healthily, but are dry and cracked at the top. John identifies the problem as an excessive exposure to heat and sunlight, and recommends putting a netting over the plants to filter and moderate the sunlight. Rosemary also has a similar problem with her roses. The leaves on her rose plants become yellow and brown and eventually die off. John calls it "heat sc...

How To: Scratch on the Pioneer CDJ turntable

To scratch on a pioneer CDJ turntable, first select the sound you are going to use. Observe the position of the black line on the turntable in relation to the sound you've selected. Understand how much room you have to manipulate the sound and position your fingers accordingly. The platter will move in accordance to the black line and your finger. You can also lift your hand off the platter in the play and pause mode to let the sound move itself by its own accord and at its own speed. Move yo...

How To: Graph by using an X-Y table

In this video the author shows how to graph using an X-Y table. He shows how to do this with a sample equation. He builds a table of x, y values where he takes sample values for x like -1, 0, 1 and now he substitutes these values in the equation of the line and obtains the corresponding y values. Now finally he has an x, y value table which now he shows how to plot it on a coordinate plane. He plots all the three pairs on the graph and connects them with a line finally obtaining the resultant...

How To: Eat for Free at DragonCon 2012

If you're like me, you've already spent a ton of money on your costumes, your badge, and your hotel room, and now you're looking for ways to cut costs. There are all kinds of ways to save money at DragonCon, but many of them involve violating the rules in some way, such as not buying a badge, sleeping on the floor in a hallway somewhere, etc. However, the one thing you can do that is totally not against the rules is eat for free. It requires a little self-discipline and a willingness to eat w...

How To: Calculate a t-statistic confidence interval for a small sample size

Want to find the value of a t-statistic confidence interval for a small sample? This clip's your ticket. 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: Make Dirty South drums in FL Studio

In this tutorial, we learn how to make Dirty South drums in FL Studio. First, you need to get the samples from the 808 drum kit. After you have these, you will load up the tempo, going no lower than 1.5 and doing 16 bars. Then, play the drum sounds until you find some that you like the best. After you have the bass drums, select the snare drums. Go through the drum kit until you have selected all of the drums that you like. There are a lot to choose from, so take your time listening to all th...

How To: Analyze the conclusion of a sample argumentative essay

In this video we learn how to analyze the conclusion of a sample argumentative essay. The conclusion is only two lines long, but it should be looked over thoroughly. The conclusion should reinstate the main thesis from the essay. It should also give an indication of how the thesis was argued for. You should avoid the phrase "I feel that", "I believe that", and "I feel strongly that". When you change up this, it will make the conclusion appear stronger. When you do this, your conclusion will b...

How To: Do long multiplication

In this video the instructor gives you sample as of how to SLEP long multiplication. You start by breaking the numbers up to simpler forms. If you have a two digit number that your multiplying by a another two digit number you multiply the first two digit number and then buy the second digit of the second two digit number. You have to remember to carry the remainders. You then add your two multiplicative lines together giving you the sum. this can be done to cover any set of multi-digit numbe...

How To: Use the IF function with letter grades in Excel

This six-minute tutorial shows you how to use the logical IF function with letter grades in Excel. The video features a sample table with a sample assigned grading scheme ranging from A to F, which is a common application of the logical IF statement in Excel. After the data is added to your Excel table, use the IF function in the respective cell or column by inputting the logical test, the value if the test is true, and the value if the test is false. In addition to showing you how to use the...

How To: Determine if someone's lying via Visual Accessing Cues

This video demonstrates how you can tell if someone is lying using visual accessing cues. This is a sample video of Kelley Moore teaching for a breakthrough collaborative application. She uses basic psychology terms to aid in understanding when someone lies. A sample visual cue for lying is to notice the eyes. If someone is lying, their eyes would twitch or unconsciously shift to the left side. If you follow the steps in this video, you'll be able to notice when someone is lying to you.

How To: Find Z with the Z-Score formula

In this video tutorial the instructor shows how to find Z with the Z-Score formula. He uses a sample problem to show how to find this. He tells you the formula for z which is a real simple formula. Now he notes down the formula on the board and brings in the example problem with sample values. He substitutes the values in the z-score formula and solves it finding out the z value. This video shows how to find z using the z-score formula and also demonstrates the formula using a simple example.

How To: Write a slope-intercept equation perpendicular to line

In this tutorial the instructor shows how to write a Slope-intercept equation that is perpendicular to a line and passes through a point. He shows how to do this by solving an example with sample values. He says that the slope of a line perpendicular to the original line is the negative inverse of the slope of original line. Now he writes down the slope value in the general equation y = mx + c, and by substituting the sample value in the equation he obtains the value of the Y-intercept c, thu...

How To: Fix extreme red eye in Photoshop using replace color

If you have a photograph with an extreme red eye problem, then you will have to take steps above and beyond using the built-in red eye reduction tool in Adobe Photoshop. In extreme cases, red eye will actually contain colors outside of the red spectrum of light. Since the red eye tool only works on this spectrum of light, you will have to manually fix extreme red eye by working on tools that are effective across all different wavelengths of light. The most effective tool at your disposal in t...