This document contains mathematical equations and formulas. It includes equations for calculating the mean (average) of a data set, the sum of squares, the standard deviation of a data set, and a linear equation for a line.

12. ‘I
1 5 6 SC 101

13. SC 101 1 5 7

31. ‘l-l 2
S
/
c x. -
= , i=l 1
Li, xL)2
n
v
n-1
. s. . = d-iii = 3.16
S2
2
=
x+3
S
x
?,?;a Sxka = 5
x
wT0 sax = Ial sx
SC 101 1 7 5

32. 1 7 6
SC 101

33. fl. Y = 4X+20
1 7 7SC 101

34. 1 7 8 SC 101

35. SC 101 1 7 9