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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…
You may encounter situations in which you have a three-dimensional solid shape and need to figure out the area of an imaginary plane inserted through the shape and having borders defined by the boundaries of the solid. For example, if…
The creatures that roam the deepest parts of the ocean, known as the _hadal zone or hadopelagic zone_, are largely a mystery to humans. It’s only recently that we’ve developed technology that allows us to plunge miles beneath the surface…
Writing 33 percent as a fraction requires a basic knowledge of fraction and percentage conversion. A fraction represents an amount relative to a whole. With percentages, the same concept applies, with 100 designated as the whole. Checking your work requires…
