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What are Type I and Type II errors?

A Type I error is when the null hypothesis is incorrectly rejected. The null hypothesis states that there is no relation between the independent variable and the dependent variable. This means the experiment...
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Answered by Gemma B. • Psychology tutor
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Sketch the curve y = (2x-1)/(x+1) stating the equations of any asymptotes and coordinates of the intersection with the axis. As an extension, what standard transformations from C1 could you use on y=1/x to get this curve?

A good way to start with any of these questions is to guess what type of curve this is, and if that is too difficult then the next best thing is to find some points. In this case it is obvious that it is a h...
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Answered by Alex D. • Maths tutor
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What is the effect of reducing interest rates on a currency’s exchange rate?

‘Interest rates’ refer to the return on savings and cost of borrowing in a country. If interest rates were to fall in a country, such as the UK, it would become less profitable to save money there. This mean...
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Answered by Owen M. • Economics tutor
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Write the number 0.0534 in standard form (1 mark)

5.34 x 10 -2
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Answered by Christopher T. • Maths tutor
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Describe the generator effect and its use within transformers (6 marks)

The generator effect is the induction of a potential difference (leading to a current) when a wire experiences a change in magnetic field) (2 marks)In a transformer, there are primary and secondary coils. An...
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Answered by Tobias M. • Physics tutor
16954 Views