erm what the sigma

"Sigma" is the Greek letter Σ, which is commonly used in mathematics and statistics to represent summation. In mathematical equations, it signifies the sum of a sequence of numbers or terms. For instance, if you have a series of numbers

𝑎
1
,
𝑎
2
,
𝑎
3
,
…
,
𝑎
𝑛
a

1


,a

2


,a

3


,…,a

n


, then the sum of these numbers can be denoted as

∑
𝑖
=
1
𝑛
𝑎
𝑖
∑

i=1
n


a

i


, where

∑
∑ represents the summation symbol,

𝑖
i is the index of summation (it starts at

1
1 and goes up to

𝑛
n), and

𝑎
𝑖
a

i


represents each individual term in the series.

In statistics, sigma (
𝜎
σ) is also used to represent the standard deviation of a population, or the spread of data points around the mean. This usage is particularly common in fields like probability theory and data analysis - Made by ChatGPT because i am NOT writing all that

Person 1: I shit myself
Person 2: Erm what the sigma