Find the Value of the Expression $\left( - \frac { 1 } { 2 } \right) ^ { 3 }$

Multiple Choice

Find the value of the expression.
- $\left( - \frac { 1 } { 2 } \right) ^ { 3 }$

A) $- \frac { 1 } { 8 }$
B) $- \frac { 1 } { 6 }$
C) -8
D) $\frac { 1 } { 8 }$