Christian Lawson-Perfect- Numbas at mathcentre.ac.uk

Lead developer of Numbas.

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

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Christian's activity

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Christian Lawson-Perfect on Descriptive Statistics (Psychology) 10 years, 4 months ago

Gave some feedback: Ready to use

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Christian Lawson-Perfect on Descriptive Stats (P): Standard Error 10 years, 4 months ago

Gave some feedback: Ready to use

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Christian Lawson-Perfect on Descriptive Stats (P): Standard Error 10 years, 4 months ago

Saved a checkpoint:

Rewrote the prompt so it makes sense
Wrote some advice.

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Christian Lawson-Perfect on Descriptive Stats (P): find sample mean, range and variance 10 years, 4 months ago

Saved a checkpoint:

Rejigged so it's three parts.
Displayed the data in a table.
Changed the setting to toilet visits instead of number of anti-depressants taken, because that's both grim and unrealistic.
Wrote some advice.

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Christian Lawson-Perfect on Descriptive Stats (P): find sample mean, range and variance 10 years, 4 months ago

Gave some feedback: Ready to use

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Christian Lawson-Perfect on Descriptive Stats (P): find sample mean, range and variance 10 years, 4 months ago

Saved a checkpoint:

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Christian Lawson-Perfect on Descriptive Stats (P): Mode 10 years, 4 months ago

Gave some feedback: Ready to use

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Christian Lawson-Perfect on Descriptive Stats (P): Mode 10 years, 4 months ago

Saved a checkpoint:

Rewrote to do what I said below.
It's a bit cleverer than that - it generates a uniform random set of data, picks one of the (possibly more than one) modes of the set, and adds another copy to make the mode unique.

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Christian Lawson-Perfect on Descriptive Statistics (P): Median 10 years, 4 months ago

Gave some feedback: Ready to use

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Christian Lawson-Perfect on Descriptive Statistics (P): Median 10 years, 4 months ago

Saved a checkpoint:

Added advice.

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