How to find lower and upper bounds in short-cut way | limits of accuracy | Quick and easy method

This video focuses on how to find the lower and upper bounds. The first part explains what upper and lower bounds are. Following that I will show you a quick and EASY method of finding upper and lower bounds. All measurements are approximate. Measurements are given to the nearest practical unit, like a km or cm or mm. There is then a group of numbers that the original measurement is somewhere between. This is the limits of accuracy. There is a largest possible number called the upper bound and a lowest possible number called the lower bound. Here we used a simple method we can use: half the degree of accuracy, and then add or subtract this from the rounded value to get the upper and lower bounds. The degree of accuracy could be a measurement rounded to a nearest unit, or a number round to a certain amount of decimal places or rounded to significant figures.

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