Hot Education How-Tos
How To: Find a regression line in statistics
Learn how to solve statistics problems that require you to find the regression line. Whether you need help studying for that next big stats text or just a hand finishing your homework, you're sure to be well served by this four-part free video math lesson from Salman Khan.
How To: Minimize the sum of squared error for a regression line in statistics
Learn how to minimize the sum of squared error for regression line problems in stats. Whether you need help studying for that next big stats text or just a hand finishing your homework, you're sure to be well served by this four-part free video math lesson from Salman Khan.
How To: Calculate r-squared to see how well a regression line fits data in statistics
Learn how to solve r-squared problems. Whether you need help studying for that next big stats text or just a hand finishing your homework, you're sure to be well served by this free video math lesson from Salman Khan, which presents a detailed overview of how to calculate r-squared in statistics.
How To: Dissect the geometrical quadrilateral trapezoid
If you've ever had problems with trapezoids in the past, this math lesson should clear some things up. A trapezoid is a geometrical shape, a quadrilateral, that has only one pair of parallel sides. Outside of the US, it's referred to as a trapezium. Yay Math breaks down the properties of trapezoids, including the isosceles trapezoid, the legs of the trapezoid and the median of the trapezoid.
How To: Understand the differences / similarities between squares, rectangles & rhombi
This math lesson from Yay Math covers four-sided shapes in geometry. Learn about the differences and similarities between rectangles, squares and rhombi (the plural of rhombus). The properties of rhombi and squares are covered, so sit back and enjoy this educational (and FUN) math lesson.
How To: Make chlorine gas with pool chlorine and hydrochloric acid
Chlorine gas is a very useful oxidant, which was first introduced as a toxic weapon by the German Army. Even today, it's still used as a weapon, most recently in the Iraq War by insurgents. But chlorine gas has more useful (and less lethal) applications, and if you want to learn how to make some at home, NurdRage has the answers.
How To: Compare population proportions 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 compare population proptions in stats.
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: Compare population proportions 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 compare population proportions.
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: Use the turning points device in your own writing projects
Turning points can be used to throw both your characters and your readers off guard, as suddenly there is something else going on and the energy of the story takes a different turn. By looking at classic turning points in novels, you can make use of turning points in your own stories.
How To: Write a good query letter to a literary agent
The query letter is often your first point of contact with a literary agent, and the first step to becoming a full published author. So you'll want your query letter to be as effective as possible. Here's what to do (and what not to do!) to write an effecitve query letter.
How To: Tighten up your writing by getting rid of passive voice
Veteran writer Holly Lisle gives good advice on how to become a better writer by eliminating passive voice from your prose. Go through your manuscript, and delete as many instances of the verb 'to be' as you possibly can to tighten up your writing.
How To: Compute a square root using the geometric method
With mathematics, as with anything else, not everyone progresses at the same rate. Happily, in the age of Internet video tutorials, this isn't a problem. Those who progress quickly can go beyond what's being taught them and those who are struggling likewise have all the time in the world to catch up. With this free video math lesson, you'll learn how to calculate the value of a square using using geometry.
How To: Calculate square roots on paper the easy way
Perhaps not as easy as using a calculator, but easy nevertheless! With mathematics, as with anything else, not everyone progresses at the same rate. Happily, in the age of Internet video tutorials, this isn't a problem. Those who progress quickly can go beyond what's being taught them and those who are struggling likewise have all the time in the world to catch up. With this free video math lesson, you'll learn how to find square roots by hand.
How To: Use the divisibility rule to test if a large number is divisible by 2, 5 or 10
This is easier than the divisibility by 3 rule, but still necessary for those starting out with simple division in math class. You can use the divisibility rule to see if a number is divisible by 2, 5 or 10. This video will show you how simple it is!
How To: Solve a simple addition problem with the number line trick
It may seem elementary to some, but there are still those (especially young children) who cannot add two numbers together. The easiest way to start out with addition is with the number line trick. This math video shows you the quick trick to learning simple addition problems. From here, things only get tougher.
How To: Use the divisibility rule to test if a large number is divisible by 3
If you're looking for an easy way to determine if a number is divisible by 3, then look no further than the divisibility rule. It's a shorthand way to tell if any given number can be divided by 3, without actually performing the division. Take the number in question, and if the sum off all the digits is divisible by 3, then the original number will be, too. There are four examples in this math video.
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: 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: 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: Calculate Type I (Type 1) errors in statistics
Need a quick primer on how to solve type-1 error problem in stats? Let this video be your 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: 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 one-tailed and two-tailed tests in statistics
Can't make heads or tails of one- and two-tailed tests? Never fear. This stats lesson will teach you everything you'll need to know. 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: Construct a small sample size confidence interval using a t-distribution
Learn how to build small sample size confidence intervals using t-distributions. 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 construct a small size sample confidence interval using t distribut...
How To: Write a compelling crime novel or thriller
While this video is aimed at the writer of a crime novel or thriller, you can use this advice to strengthen any fiction writing. Avoid stereotypical characters and create believable conflict between all the characters. And above all - make sure you have a good motive!
How To: Write a compelling and effective screenplay
Want to become the next Oscar winning screenwriter? Writing a movie script is sometimes harder than it can seem at first. This ten minute tutorial shows you all the basics you'll need to master to write the best movie script or screenplay you can.
How To: Improve Your Story by Letting a Character Take Over the Scenes
If you are writing a character who is in-depth enough, you will be able to let the character out of the box and improve your writing by taking over the scene completely. Master the exercise outlined in this video and get a better grasp on both your plot and character.
How To: Use a Timeline to Organize the Flow of Events in Your Novel
Every budding writer needs to be able to work out the order of events that make up the plot, and one of the best ways to do this is to design an timeline. Learn how to organize your events and tighten up your plot when you utilize a timeline.
How To: Write a Good First Draft to Help You Become a Better, Published Writer
You need to start strong in order to be able to finish stronger, which is what makes a first draft so important to a writer who wants to eventually be published. National Novel Writing Month (NaNoWriMo) is a great way to get your novel into first draft form!
How To: Use Mind Maps to write your next novel or technical document
The Mind Map is a technique you can use when writing your next novel, article, technical document or any other project. Create character profiles, plot arcs or design the main goal of your article by using this innovative and useful technique for organizing the information in your piece.
How To: Understand and Provide Indirect Care for CNA Certification
What is Indirect Care? Does it affect the CNA's exam result? Indirect Care entails your behavior in terms of how you communicate with the resident, valuing residents' rights and residents' safety and security. Indirect Care is absolutely important because: (1) it is a graded performance, (2) it has separate score ratings, and (3 )it greatly affects the testees' overall performance during the clinical skills exam.
How To: Take an Organized Approach to Studying and Reduce Exam Stress for CNA Certification
The CNA certification exam can be stressful at times, especially on the clinical exam portion. However, despite the exam difficulties, everything has a solution. Qualified nursing assistants are preparing various CNA study techniques and CNA study guides just to reduce any test anxieties and stress.
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: 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: 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: Calculate the confidence interval in basic 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 a confidence interval in basic statistics.
How To: Find a 95% confidence interval for a proportion 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 find a 95% confidence interval in statistics.