Need help ASAP
Which formula is used to calculate the standard deviation of sample data?
2
2
2.
x - x
+
X2
Х
+ ... +
X₂-X
S=
n-1
(x1 – 4)2+(x2-x) 2+...+(xw=*) ?
2
N
(x1 - x)+(x2-x) +...+(xx-x)?
JE
Sko-) (872. (
1-7).
+
+ X2-X
X
SE
n-1

It takes a total of 6 hours to fill up an inground backyard pool using a standard house. a function can represent this situation to represent the amount of water in the pool until it is full a function of time the hose is running. determine the domain for the function

Which equation matches the graph shown ?

On a cm grid, point p has coordinates (3,-1) and point q has coordinates (-5,6) calculate the shortest distance between p and q give your answer to 1 decimal place