Human Population Search Results

How To: Save the Bee Population from Colony Collapse Disorder

The bee population is in trouble. Colony Collapse Disorder is a mysterious malady that is decimating bee colonies all the country and could kill them completely, which would leave all of the plants and honey-loving people of the world in serious trouble. This video will give you some tips for encouraging the bee population, which is really one of the most green things you can do in this, the bees' time of need.

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: 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: Beat the Population Control challenge in God of War 3

In this helpful video tutorial, you'll find out the secret to beating the Population Control challenge in the popular PS3 title, God of War 3. It's a pretty simple challenge that needs to be completed in a certain amount of time. You basically just have to make sure there are no more than 50 enemies at the same time. So good luck and enjoy the video!

How To: Find the percent increase or decrease in a quantity

This video shows us the method to find the percent increase or decrease in a quantity. This can be done in 30 seconds. The formula states that the percentage increase or decrease is equal to the product of the ratio of amount (increase or decrease) and the original amount and 100. This is explained by two examples. In the first example the amount of increase of the price of groceries is found by taking the difference of the new price and the old price. This is divided by the original price an...

How To: Make a yeast starter for homemade beer

This how-to video provides step by step instructions for making a yeast starter for home-brewing beer. A yeast starter assures a healthy and viable yeast population prior to pitching and also gives a larger yeast population to reduce lag-time in brewing. Watch this video homebrew tutorial and learn how to make a yeast starter beer at home.

How To: Build a bat cave

August is a time when it is common to see bats flying overhead while taking an evening stroll or night fishing at your favorite spot. The two most common bats in Ohio are the little brown and the big brown bats and both are found in rural and urban settings. Bats serve a valuable purpose for humans because they feed on insects, including mosquitoes and those which plague farmers’ crops. However, bats sometimes create roosts, or gathering places, in people’s homes. Join Wild Ohio’s Donna Danie...

How To: Understand mean and standard deviation

Keith M. Bower explains the meaning of mean and standard deviation. This educational video gives insight in the basics of statistics. The relations between population mean and sample mean and between population standard deviation and sample standard deviation are explained. The mean gives an idea on the central tendency. Standard deviation gives an idea about how spread out the data are. Keith also explains how these two parameters, the joint sufficient statistics, define a normal distributio...

How To: Find deviations and variance for a population in Excel

If you use Microsoft Excel on a regular basis, odds are you work with numbers. Put those numbers to work. Statistical analysis allows you to find patterns, trends and probabilities within your data. In this MS Excel tutorial from everyone's favorite Excel guru, YouTube's ExcelsFun, the 41st installment in his "Excel Statistics" series of free video lessons, you'll learn how to calculate deviations, variance and standard deviation for a sample and a population using Excel tables and the VAR, S...

How To: Find confidence intervals without the sigma in Excel

If you use Microsoft Excel on a regular basis, odds are you work with numbers. Put those numbers to work. Statistical analysis allows you to find patterns, trends and probabilities within your data. In this MS Excel tutorial from everyone's favorite Excel guru, YouTube's ExcelsFun, the 82nd installment in his "Excel Statistics" series of free video lessons, you'll learn how to construct confidence intervals when the sigma value (the population's standard deviation) in NOT Known using the TINV...

News: Livestock Antibiotic Use Increases Threat of Resistant Microbes to Humans

Antibiotics used to prevent diseases in livestock are creating a world of hurt for humans and the soil we depend on for food. Bacterial resistance to antibiotics is a global health issue. The overuse, underuse, and poor use of these life-saving drugs is rapidly removing them as a treatment option for serious infections in humans—plus bacteria are naturally adaptive.

How To: Diagnose and treat hemorrhoids

Around half the UK population will develop piles at some point in their life. In this exclusive guide, Dr Jessen explains the causes of hemorrhoids and dispels some myths along the way. He also discusses treatment options – from over-the-counter creams to surgery – and advises on the best way to prevent piles occurring in the first place. Watch this video tutorial and learn how to diagnose and treat hemorrhoids.

How To: Use NORMSINV with critical values in Microsoft Excel

If you use Microsoft Excel on a regular basis, odds are you work with numbers. Put those numbers to work. Statistical analysis allows you to find patterns, trends and probabilities within your data. In this MS Excel tutorial from everyone's favorite Excel guru, YouTube's ExcelsFun, the 87th installment in his "Excel Statistics" series of free video lessons, you'll learn how to use NORMSINV to test a hypothesis with population standard deviation (sigma) known and proportions.

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: Use the NORMSINV & NORMSDIST in Microsoft Excel

If you use Microsoft Excel on a regular basis, odds are you work with numbers. Put those numbers to work. Statistical analysis allows you to find patterns, trends and probabilities within your data. In this MS Excel tutorial from everyone's favorite Excel guru, YouTube's ExcelsFun, the 93rd installment in his "Excel Statistics" series of free video lessons, you'll learn how to use the NORMSINV and NORMSDIST functions to complete a hypothesis test about a population proportion.

How To: Construct confidence intervals with TINV in MS Excel

If you use Microsoft Excel on a regular basis, odds are you work with numbers. Put those numbers to work. Statistical analysis allows you to find patterns, trends and probabilities within your data. In this MS Excel tutorial from everyone's favorite Excel guru, YouTube's ExcelsFun, the 83rd installment in his "Excel Statistics" series of free video lessons, you'll learn how to construct confidence intervals when the sigma (population standard deviation) in NOT known using the TINV function.

How To: Use AGGREGATE instead of SUBTOTAL in MS Excel 2010

New to Microsoft Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. In this MS Excel tutorial from ExcelIsFun, the 664th installment in their series of digital spreadsheet magic tricks, you'll learn how about how the new Excel 2010 AGGREGATE function that can calculate these 19 different functions depending on what number you put into the 1st argument of the AGGREGATE function. This is an improvement over the SUBTOTAL function wh...

How To: Diagnose and treat warts

At any given time, about 10% of the UK population have warts, which costs the NHS a staggering £40m a year in treatment. In this exclusive guide, Dr McKenna discusses the various types of wart – from the common wart to the genital wart – and advises on both preventative measures and treatment options available, to ensure that these little blighters will blight you no more. This video tutorial shows how to diagnose and treat warts.

How To: Make a homemade cat trap

Needing to trip the feral cat population in your neighborhood. Well, it's time to make a trap, fill it with cats, and shut your trap. This good how to shows a trap you can build yourself, and the necessary tequinique to catch those cats.

How To: Create a line-graph in Excel 2007

In excel a left click is made on box A1 and the X title is typed in as year. In A2 the year 2001 is typed and in A3 the year 2002. Both A2 and 3 boxes are highlighted and the bottom right hand corner is used to drag the work into a copied sequence down to A12. In B1 "population in billions" is typed. From the web site the data is copied and typed in as it appeared and the numbers are rounded off. A click is made on the "insert" tab and line is selected from the menu which appears. The upper l...

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