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How do I write an effective introduction for an English essay?

Planning The key to writing a good essay introduction is to plan your answer first. This is more difficult in an exam than for a coursework essay, as you have the additional pressure of limited time. As a ge...
SP
37645 Views

What are the differences/similarities between perfect competition and monopolistic competition?

Economists can predict and describe the nature of a firm based upon its existing size, structure, behaviour and relationship to other firms (market power). This is known as theory of the firm . Two possible ...
OJ
Answered by Olivia J. • Economics tutor
87450 Views

What is standard deviation and how does it work for non-grouped data?

Standard deviation is the spread of data around the mean value. It is useful for evaluating the spread of a selection of data, and is used to compare multiple data sets. Ideally a data set would have a low s...
SW
Answered by Savannah W. • Maths tutor
5111 Views

Why can't you hear any noise in space?

To understand this, we must first know how sound energy gets from one place to another. This is done via waves, of which there are two different types: longitudinal and transverse. Light is a transverse wave...
JT
Answered by James T. • Physics tutor
4427 Views

How do you convert from binary to decimal?

Our conventional numbering system is based around the idea that we can represent any number with 10 different digits arranged in a specific order. Because of this, this is called a base-10 or decimal system....
JT
Answered by James T. • Computing tutor
4391 Views