Sigma
Pronunciation: /ˈsɪɡmə/
Sigma (noun)
- The 18th letter of the Greek alphabet, used in math and science.
- A symbol (Σ) used in mathematics to show the sum of a series of numbers.
- A measure in statistics that shows how much numbers in a set differ from the average.
Examples
- Sigma is the 18th letter of the Greek alphabet.
- In Greek, sigma is used at the end of a word.
Common collocations: uppercase sigma, lowercase sigma, sigma notation, calculate with sigma, sigma value