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Pythagoras' Theory explains that the length of sides in a right angled triangle are related. This means we can use the length of two sides to find that of the third! The relationship he found is a 2 + b 2 = ...

Using the normal distribution, we can estimate a range of values which we expect to contain the mean. For example, if we take a sample of 30 students height, we can estimate the mean height of students in th...

A monopoly is a relatively simple market structure. One firm is the single producer for the market, or serves the majority of customers. For this to occur there must be some kind of barrier which stops other...

Global superpowers can be defined as states which are powerful on the global stage, both explicitly through their role in global institutions such as the UN and implicitly through their influence. Since the ...