Central limit theorum is easily one of the most fundamental and profound concepts in statistics and perhaps in mathematics as a whole. In probability theory, the central limit theorum (CLT) states conditions under which the mean of a suffiently large number of independent random large variables (each with finite means and variance) will be normally distributed, approximately. Huh? If you are having trouble understanding central limit theorum and need help trying to solve it, check out this tu...
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.
In this tutorial the author shows how to find the circumference of a circle. He says that the circumference of a circle can be calculated by using the formula circumference C = 2 * Pi * R, where R is the radius of the circle. He shows how to solve these kind of problems using some examples and calculating the circumference by substituting the value of radius in the formula. This video gives a good introduction on how to find the circumference of a circle.
The video is a tutorial in trigonometry. The teacher teaches that the tangent or the tan of an angle is the ratio of the opposite side to the adjacent side of a right angled triangle. If one side and one angle is given then the value of the unknown side can be found by solving the equation tan of angle is equal to opposite upon adjacent side. If the angle is to be found then the tan inverse of the value is seen in the calculator.
While dividing the radicals, the numerator and the denominator must be combined into a single term, for example if we want to divide square root of 3 by square root of seven we need to combine the numerator and denominator into a single factor that is square root of 3/7, then we can divide 3/7 which is 0.4285, and square root of 0.4285 is 0.654 which is the final answer.
Stretching your ears out to fit in a gauge looks totally counter culture and cool, but if you get too excited to load one in and stretch your earlobes too quickly there could be huge (and nasty) consequences.
In this video the tutor explains the 5th Law of Exponents. He reminds the viewer that when polynomials are multiplied, their exponents get added. Now he states that when a polynomial is raised to another power, the exponents are multiplied instead of adding. The 5th Law of Exponents states that when a polynomial with a power 'a' is raised to a power 'b', then the final power of the exponents is the value of the product of the exponents, i.e., a * b. This video states the 5th Law of Exponents ...
To find a vertical asymptote, you are trying to find values of x that produce 0 in the denominator but not in the numerator. If 0/0 occurs, that means you have a "hole" in the graph. A vertical asymptote is a place in the graph of infinite discontinuity, where the graph spikes off to positive or negative infinity. To find the vertical asymptote, set the denominator equal to zero and solve for x. Check that the values also do not give a zero in the nominator. If the values work, you have found...
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...
Excel Fun will show you how to get the most out of your Excel experience by learning about pivot tables. With Excel and the latest Excel 2010 you can learn how to create a pivot table. Learn where in the system to go to find the table. Learn how to add our numbers and create a calculation and watch it being solved. Your instructor will go through a detailed equation so that you can see how to do your own calculation.
In this video tutorial the author shows how to use the Cosine Law. He shows how to find an angle of a triangle where he know all the sides of a triangle, using the cosine Law. He uses a lower case letter to designate a side and a capital letter to designate an angel apposite to that side. He gives the formula for the cosine law using a triangle as an example. Now he goes on and demonstrates how to use a scientific calculate. He shows how to use the degree mode in the calculator to solve these...
Have a hard time figuring out what a geometric sequence is? This video will help you to identify different geometric sequences as well as determining its nth term. A geometric sequence is a group of numbers that follow a certain pattern of multiplying a fixed number from one term to another. The tutorial uses 4 different examples of geometric sequences and also shows you how to solve each of these sequences as well. Take some time to watch this video if you are a pre-algebra student, it is a ...
In this video the instructor shows how to shade a system of inequalities. He says that shading a system of inequalities is similar to shading a single inequality but in the former case you tend to shade more than one inequality in the same graph. He shows how to do that using an example set of inequalities and plots the lines on the graph. He uses dotted lines for lesser than or greater than inequalities and uses straight lines for inequalities which contains the equal to symbol. Now he shade...
In this video by Dogmantics, dog trainer Emily Larlham goes over how to make an interactive dog toy for your pooch to play with just a plastic container, a pair of scissors, and some dog food.
Dog trainer Emily Larlham of Dogmantics, goes over some good clues on how to grab your dog when it's running around loose.
From Dogmantics, dog trainer Emily Larlham visits pitbull specialist, Jessica Wheatcraft to get some tips on how to understand and train your pitbull. .
Dogs are smart. We don't need to punish them every time they don't do a trick. Through positive reinforcement training, dogs can learn almost anything. From Dogmantics, dog trainer Emily Larlham shows a few tricks she taught her dog!
From Dogmantics, dog trainer Emily Larlham gives a us tips on how to get your doggy to stop barking. By first changing your dog's emotional response to the stimuli, then working from low levels of criteria to higher levels, then finally, adding full criteria you're dog will get comfortable around the bark-worthy source and remain calm.
Aida deep fries sole strips in a light club soda batter. Follow along and learn how to make this sole batter from scratch. This cooking how-to video is part of Ask Aida show hosted by Aida Mollenkamp. Cooking expert Aida Mollenkamp will prepare delicious dishes while solving Food Network viewers' culinary conundrums in her new interactive cooking show, Ask Aida. From recipe and ingredient issues to advice on kitchen machinery and tools, Aida will even offer guidance for impromptu parties, fee...
For brunch, Aida bakes eggs with spinach, Canadian bacon and aged cheddar. Baked eggs make a great meal for a weekend brunch. This cooking how-to video is part of Ask Aida show hosted by Aida Mollenkamp. Cooking expert Aida Mollenkamp will prepare delicious dishes while solving Food Network viewers' culinary conundrums in her new interactive cooking show, Ask Aida. From recipe and ingredient issues to advice on kitchen machinery and tools, Aida will even offer guidance for impromptu parties, ...
Aida shares her technique for making a perfectly flaky piecrust. Follow and learn this recipe to make tasty pies every time. This cooking how-to video is part of Ask Aida show hosted by Aida Mollenkamp. Cooking expert Aida Mollenkamp will prepare delicious dishes while solving Food Network viewers' culinary conundrums in her new interactive cooking show, Ask Aida. From recipe and ingredient issues to advice on kitchen machinery and tools, Aida will even offer guidance for impromptu parties, f...
A quick and easy way to whip up gourmet spinach fettuccine. Follow along and learn how to make this vegetable and pasta dish. This cooking how-to video is part of Quick Fix Meals with Robin Miller show hosted by Robin Miller. Busy people everywhere face the same dilemma, how to get healthy weeknight dinners on the table when you've only got minutes to spare. Cookbook author, nutritionist and food journalist Robin Miller guides you through the landmines of getting food on the table nightly wit...
Make easy zucchini boats for a delicious weeknight meal. This cooking how-to video is part of Quick Fix Meals with Robin Miller show hosted by Robin Miller. Busy people everywhere face the same dilemma, how to get healthy weeknight dinners on the table when you've only got minutes to spare. Cookbook author, nutritionist and food journalist Robin Miller guides you through the landmines of getting food on the table nightly with her stress-free meal planning strategies. Her easy, day by day plan...
It's difficult to learn programming in the abstract. By building something I need and care about I can learn piecemeal, asking just the questions I need to solve the next step.
Love the taste of fresh ginger, but hate throwing out dry, moldy roots? Solve the problem by storing it in the freezer. Whenever you have a hankering for fresh ginger, just grate the still-frozen root into your favorite recipes. Ginger will lose some of its potency in the freezer, but not enough to make a significant difference. When previously frozen ginger thaws completely it develops a sodden texture, so once frozen it's best to keep it that way. Frozen ginger is also a little bit easier t...
Virtual reality is all the rage these days, especially with devices like the Oculus Rift, Gear VR, and HTC Vive hitting shelves lately. But before any of those fancy, expensive headsets ever made it to the market, Google came up with a thrifty and inventive substitute in the form of Google Cardboard.
Many of our members here at Null Byte are aspiring hackers looking to gain skills and credentials to enter the most-valued profession of the 21st century. Hackers are being hired by IT security firms, antivirus developers, national military and espionage organizations, private detectives, and many other organizations.
As with any software, Android apps can occasionally suffer from bugs. But finding the root cause of such issues can often be difficult, and reporting bugs is a cumbersome experience.
While viewing notifications, I have a nasty habit of accidentally hitting Clear and getting rid of them all before I actually have a chance to read them. There is an easy way to view the notification history on Android, but if you turn off or reboot your Samsung Galaxy S4, the history is wiped clean.
As people continue to upgrade their PCs to Microsoft Windows 8, more and more developers are adding content to the Windows Store. While the offerings are not as vast as Google Play or the iTunes App Store, it does have some solid apps for both productive users and those looking to just while away the time.
Public speaking takes on many forms from standing alone to being in a group. Get tips on solving problems as a group from a public speaking expert in this free instructional video series.
Is your Mac computer broken? Here are some basic troubleshooting tips that you might find useful before you take it into the shop to be repaired. These are some simple things that you can do to troubleshoot issues. If you are not a computer expert, you might have to bring your computer to the repair shop for proper diagnosis and repair. However, one of these helpful hints solve your problem and save you a costly repair bill.
This four-part video will help introduce you to mastering in Logic Pro. The first video talks about loudness and why it's important in getting your music heard throughout the world. But you also need to know the mastering direction! In the other videos, you'll learn some tips about making your music louder, creating a balanced track, solving masking, and how not to ruin your bass track. Mastering audio is an art form, especially in Logic Pro, so make sure you know the keys to success!
A rough definition of standard deviation is that it is a measure of expressing the observed variations about the average in statistical data i.e. by how much do the observed values vary from the mean. This video continues from the previous solved example and demonstrates the mathematical interpretation of the standard deviation that was calculated. We begin with stating the mean and standard deviation values and then calculating the upper and lower bounds of the data based on the standard dev...
In this video, we learn how to use Visual Basic to convert temperature units. To start, make two command buttons. After you have created these, make sure you label them. The first command button should say "celsius to fahrenheit" and the second should say "fahrenheit to celcius". After this, make one text box and one label box. Now you will convert celsius to fahrenheit using the formula "F=(9/5*C) + 32". and you will be able to use this to convert temperature units. Save this and use it for ...
This is an interesting trick to solving multiplication problems. It involves multiplying 2 double-digit numbers with hand drawn, crisscrossing lines.
Lack of sleep is an epidemic in this country… throughout the world really… and a lot of people think that a pill will solve their restless nights, and that that's the best thing they can do. But there are a number of lifestyle measures that you can take and starting them early in the day is the key to a good night's sleep. It's important to stay on a schedule, eat healthy, exercise and ease into your night's sleep. Check out all the tips in this Woman's Day Magazine video!
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 problems that require you to multiply two or more decimal numbers.
Sometimes, problems are easier to solve if the numbers are presented in different ways. For example, if you are having trouble doing an equation with an improper fraction, consider turning that fraction into a mixed number to make math easier.
O0OMadMikeO0o teaches you how to activate Windows 7 RTM build 7600. For this you will need the program Windows 7 Toolkit 1.7 by Win7Vista. All you need to do is launch the program and check the box that says Activate Windows 7. After waiting 2-3 minutes, this version of Windows 7 will be activated. Note that this type of activation has an expiry date, so it's only a temporary solution. Before the end of that period, another tool or an updated version of this tool should appear that will solve...
