- #1
Bazman
- 21
- 0
the correlation between A and B is 0.8 and between B and C is 0.9. I have to calculate what the least correlation A and C can be.
[tex]
\begin{pmatrix}
1 & 0.8 & x\\
0.8 & 1 & 0.9\\
x & 0.9 & 1
\end{pmatrix}
[/tex]
using sthe standard equation for eigenvalues you get:
[tex] -\lambda^3 + 3\lambda^2 + \lambda(x^2-1.55) - x^2 + 1.44x -0.45 [/tex]
2 points have a used the correct methodology so far?
Are my calculations correct?
how do I proceed from here?
Baz
[tex]
\begin{pmatrix}
1 & 0.8 & x\\
0.8 & 1 & 0.9\\
x & 0.9 & 1
\end{pmatrix}
[/tex]
using sthe standard equation for eigenvalues you get:
[tex] -\lambda^3 + 3\lambda^2 + \lambda(x^2-1.55) - x^2 + 1.44x -0.45 [/tex]
2 points have a used the correct methodology so far?
Are my calculations correct?
how do I proceed from here?
Baz