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

100 points, hi, i’m not sure what to do here,the data doesn’t seem to be quadratic .? can anyone me, in advance

Determine the fraction of total interest owed. after the fourth month of a 12-month loan: the numerator is: {(n + ) + (n + ) + (n + ) + (n + )} = , and the denominator is: {(n) + (n + 1) + + (n + )} = . therefore, the fraction is numerator/denominator (to the nearest tenth) =

Find the constant of variation for the relation and use it to write an equation for the statement. then solve the equation.