Find $B A$ A) $\left[ \begin{array} { c c c } - 18 & 10 & - 15 \\4 & 3 & - 9 \\6 & 5 & 5\end{array} \right]$

question 38

Multiple Choice

Find $B A$ $A = \left[ \begin{array} { c c c } - 9 & 2 & - 6 \\9 & 3 & - 2 \\0 & - 2 & 5\end{array} \right] \quad B = \left[ \begin{array} { c c c } 9 & - 8 & 9 \\5 & 0 & 7 \\- 6 & - 7 & 0\end{array} \right]$

• A) \(\left[ \begin{array} { c c c }
• - 18 & 10 & - 15 \\
• 4 & 3 & - 9 \\
• 6 & 5 & 5
• \end{array} \right]\)
• B) \(\left[ \begin{array} { c c c }
• 18 & - 10 & 15 \\
• - 4 & - 3 & 9 \\
• - 6 & - 5 & - 5
• \end{array} \right]\)
• C) \(\left[ \begin{array} { c c c }
• - 153 & - 24 & 7 \\
• - 45 & - 4 & 5 \\
• - 9 & - 33 & 50
• \end{array} \right]\)
• D) \(\left[ \begin{array} { c c c }
• - 81 & - 16 & - 54 \\
• 45 & 0 & - 14 \\
• 0 & 14 & 0
• \end{array} \right]\)
• E) \(\left[ \begin{array} { r r r }
• - 35 & 114 & - 67 \\
• 108 & - 58 & 102 \\
• - 40 & - 35 & - 14
• \end{array} \right]\)

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Positive

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Regression

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Market Index

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Portfolio Standard Deviation

A statistical measure of the volatility of returns from a portfolio of assets, indicating the degree of investment risk.