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Glossary

Standard Normal Distribution

The standard normal distribution is a special normal distribution with mean 00 and standard deviation 11, written ZZ. Any normal distribution can be converted to it, which lets us use a single standard table of probabilities.

This makes comparing different normal distributions straightforward.

Meaning

The standard normal distribution is a special normal distribution with mean 00 and standard deviation 11, written ZZ. Any normal distribution can be converted to it, which lets us use a single standard table of probabilities.

This makes comparing different normal distributions straightforward.

Where it appears in Add Math

You meet Standard Normal Distribution in the Probability Distribution chapter of SPM Additional Mathematics. Knowing the term precisely matters in the exam: questions often hinge on reading a keyword correctly, and because SPM marking is analytic, using the right definition in your working helps secure method marks.

Our teachers make sure a student can not only recite what Standard Normal Distribution means but use it fluently in a full solution.

The term in three languages

Because the SPM Add Math paper is bilingual (BM/EN), it helps to know this term in each language: Standard Normal Distribution (EN) · Taburan Normal Piawai (BM) · 标准正态分布 (中文)

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Written by the spmaddmath.com.my editorial team.· Last updated 5 September 2026

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