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These are the selling prices of 5 houses in 2007: £145 000, £170 000, £215 000, £90 000, £180 000. Work out the mean selling price.

There are different types of averages: the MEAN, the MEDIAN and the MODE. The mean average is where we add all the numbers up together and divide by the amount of numbers provided. So for this case, we would...
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Answered by Kate H. • Maths tutor
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When should I use a book quotation in my writing?

It is important to use quotations in your essays as evidence for a point you are making. Use 'PQO' to remember the important steps you must adhere to when writing an essay. Point - make your point in your ow...
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Why is diffusion important in plants and animals? Give examples

The process of diffusion is extremely important for the uptake of substances into cells. These substances can be very important for a whole range of cellular processes. Its also useful in reomoving waste pro...
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Answered by Benito W. • Biology tutor
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Whats the difference between speed and velocity?

Although these two words can be used interchangably they are very very different. Its easier to explain if you break down their equatoins. Speed = distance / time Velocity = displacement / time The differenc...
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Answered by Michael G. • Physics tutor
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Whats the difference between the three main trigonometric functions?

Sin(x), Cos(x) and Tan(x) are very useful functions and can be used to solve algerbraic problems where the aim is to find the size of an angle or a size. Sin(x) = Opposite/Hypotenuse Cos(x) = Adjacent/Hypote...
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Answered by Michael G. • Maths tutor
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