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Percent deviation measures the degree to which individual data points in a statistic deviate from the average measurement of that statistic. To calculate percent deviation, first determine the mean of the data and the average deviation of data points from…
Generally categorized as Arctic or alpine, tundra refers to a treeless biome that ranks among the coldest on Earth. Though covered in snow most of the year, the tundra experiences a short summer growing season during which animal and plant…
A fraction expresses part of a whole quantity. For example, if you cut a whole pie into six equal pieces, and then eat one slice, you’ve just eaten 1/6th of the pie. Working with fractions is easy if you understand…
Different data sets will have different means and standard deviations, so values from one set cannot always be compared directly with those from another. The z-score standardizes normally distributed data sets, allowing for a proper comparison and a consistent definition…
Embrace the metric system by learning how to convert milliliters to liquid ounces. Both milliliters and ounces — an Imperial system unit — measure the volume of a substance, but you will not likely encounter the metric measure regularly in…
A swamp is an area permanently saturated with fresh water or saltwater, and it’s one with nutrient-rich soil that supports a high level of biodiversity. Trees thrive in wetlands, and a swamp is often defined by the types of trees…
A simple electrical circuit contains a source of voltage (a power supply, such as a battery, generator or the utility wires coming into your building), a wire to carry current in the form of electrons, and a source of electrical…
Acres and square footage are terms that are applied to the area of a piece of land. These measurements are extremely important when buying or selling a piece of property. You also may have to measure acres or feet if…
Fractions can take two forms, and whichever form you use, you can use your calculator or your notepad to find two-thirds of a number. For example, you can write two-thirds in fractional form – 2/3 – or as a decimal…
Although people often ignore it because they do not fully understand it, the percent key on a calculator can be an invaluable tool. When you wish to figure out what a specific percentage is of another number or a number…
