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Calculating and Inverting Normal Probabilities | Year 2 Stats | A Level Maths

The normal distribution is the most important continuous distribution at A-level. In this lesson you will learn the notation X ~ N(mu, sigma^2), use a calculator to find probabilities P(X x) and P(a < X < b), and use the inverse normal function to find values of x corresponding to a given probability. The lesson covers both standard and non-standard normal distributions.

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Stage 2

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Stage 4

Past paper revision

Past papers

A* questions

Stage 3

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Lesson Video On Calculating and Inverting Normal Probabilities

Follow the lesson video carefully with a pen and paper. By the end of it you should be comfortable with this topic. If you want a blank copy of this lesson to follow along, scroll down to the PDF viewer below and select “Student Notes Template” and download using the link at the top of the PDF viewer.

Lesson Resources For Calculating and Inverting Normal Probabilities

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