Numerical integration

There are 2 NRICH Mathematical resources connected to Numerical integration
What's your mean?
problem
Favourite

What's your mean?

Age
16 to 18
Challenge level
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Can you work out the means of these distributions using numerical methods?
Mechanical Integration
problem
Favourite

Mechanical integration

Age
16 to 18
Challenge level
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To find the integral of a polynomial, evaluate it at some special points and add multiples of these values.