Question

what does this symbol mean????

Answer 1

give me a sec

Answer 2

\(\sigma\)

Answer 3

it appeared in my lesson and not sure what it is

Answer 4

@Data_LG2

Answer 5

its called sigma

Answer 6

http://prntscr.com/6kdh5k

Answer 7

summation or sigma

Answer 8

sigma

Answer 9

sigma which means sum up

Answer 10

standard deviation

Answer 11

yes so when it says that in the table it means

Answer 12

that's the 18th letter of greek alphabet

Answer 13

sum up

Answer 14

standard deviation in this context

Answer 15

sigma which means SUM UP

Answer 16

\[\sum_{n=1}^{4}\] like this?

Answer 17

standard deviation means, how spread is your data from each other i think..

Answer 18

http://prntscr.com/6kdh5k this is where I see it at, not that

Answer 19

huh

Answer 20

give me a sec

Answer 21

I cant open Prntscrs.

Answer 22

see at the end of the table, the last column is labeled that symbol

Answer 23

oh got it. I looked at our math glossary

Answer 24

Im pretty sure its variance.

Answer 25

standard deviation for population

variance is

Answer 26

i am just learning about MAD

\[MAD =\frac{ \Sigma |x - \overline{x}|}{N }\]

Answer 27

sorry got a bit confused. let that symbol slip through my mind