Member of the e-learning unit in Newcastle University's School of Mathematics and Statistics.

Lead developer of Numbas.

I'm happy to answer any questions - email me.

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Christian Lawson-Perfect on The probability of an event not happening - five friends play mini golf 8 years, 5 months ago

Saved a checkpoint:

Split the first part, about basketball, into a separate question.

Added random names.

Changed the randomisation of the probabilities so that everyone is pulled from the same distribution (apart from the missing person, who accumulates the error when the probablities for the others are rounded off)

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Christian Lawson-Perfect on Probability of scoring at basketball given probability of not scoring 8 years, 5 months ago

Saved a checkpoint:

Split off from a bigger question.

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Christian Lawson-Perfect on Lowest common multiples: train timetable example 8 years, 5 months ago

Gave some feedback: Ready to use

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Christian Lawson-Perfect on Lowest common multiples: train timetable example 8 years, 5 months ago

Saved a checkpoint:

Changed the storm to an electrical fault, so it's more plausibly instantaneous.

Improved some of the wording in the advice.

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Christian Lawson-Perfect on Calculating expected values using theoretical probability and experimental probability 8 years, 5 months ago

Saved a checkpoint:

I've added random names, but otherwise this is good.

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Christian Lawson-Perfect on Calculating Expected Values given a table of probabilities 8 years, 5 months ago

Gave some feedback: Ready to use