Express the Sum Using Summation Notation $$3 + \frac { 7 } { 2 } + 4 + \frac { 9 } { 2 } + \ldots + \frac { 15 } { 2 }$$

Multiple Choice

Express the sum using summation notation. Use a lower limit of summation, not necessarily 1, and k for the index of
summation.
- $$3 + \frac { 7 } { 2 } + 4 + \frac { 9 } { 2 } + \ldots + \frac { 15 } { 2 }$$

A) $\sum _ { k = 2 } ^ { 15 } \frac { k } { 2 }$
B) $\sum _ { k = 6 } ^ { 10 } \frac { k } { 2 }$
C) $\sum _ { k = 1 } ^ { 15 } \frac { k } { 2 }$
D) $\sum _ { k = 6 } ^ { 15 } \frac { k } { 2 }$