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In Topic 5 (Statistics and Probability) what is the difference between mutually exclusive events and independent events?

Put simply, mutually exclusive events cannot occur at the same time, e.g when tossing a coin, the result can either be heads or tails but cannot be both. Independence of events means the occurrence of one ev...
MS
Answered by Meghna S. • Maths tutor
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'A girl was wandering through the forest when she came across an old key...' Continue the story. How do I create a descriptive piece of writing?

One of the most important things to do when writing creatively is to set the scene, because that will engage the reader. Elaborating on the 'forest' mentioned in the question would be a good start, but by in...
JC
Answered by Juliette C. • English tutor
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What is the gradient of this curve y=5x^3+6x^2+7x+8 at point x=3?

When differentiating an equation (y) you find the equation of the gradient, called dy/dx. The rule for differentiating a power of x is given below:y=x^n dy/dx= nx^(n-1)Applying this rule to this question you...
TD
Answered by Tutor179115 D. • Maths tutor
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Why can graphite conduct electricity but diamond can’t even though they are both purely made of carbon?

Though graphite and diamond are made of only carbon, they both have a different structure . The structure of Graphite consists of carbon atoms covalently bonded to 3 other carbon atoms. Each carbon atom ther...
DT
Answered by Diana T. • Chemistry tutor
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Explain how price and output are determined in both the short run and long run in a monopolistically competitive market (15 marks)

Firstly define some features of monopolistically competitive market including: differentiated products, some influence over price, good information, no barriers to entry or exit, manyproducers and consumersD...
EP
Answered by Emma P. • Economics tutor
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