- #1
amcavoy
- 665
- 0
For sets X and Y, is it true that
where [tex]s[/tex] represents the standard deviation and [tex]XY[/tex] is the set containing [tex]x_{i}y_{i}[/tex]?
[tex]s_{XY}=s_{X}\overline{Y}+s_{Y}\overline{X},[/tex]
where [tex]s[/tex] represents the standard deviation and [tex]XY[/tex] is the set containing [tex]x_{i}y_{i}[/tex]?