Mastering Mathematics Smartly
by Wee Wen Shih

A unique self-help website that provides comprehensive coverage of mathematics at A-level & beyond, written in a student-friendly style.

Normal approximation to Poisson

To use the Normal approximation, check that the Poisson mean is greater than 10.

The resulting Normal distribution has mean and variance equal to the Poisson mean.

Remember to use the continuity correction.

Try this!