Solve the Problem $x _ { 1 } = 12 , x _ { 2 } = 17 , x _ { 3 } = 5 , x _ { 4 } = 1$

Multiple Choice

Solve the problem. If necessary, round your answer to one more decimal place than that used for the observations.
-Let $x _ { 1 } = 12 , x _ { 2 } = 17 , x _ { 3 } = 5 , x _ { 4 } = 1$ , and $x _ { 5 } = 7$ . Determine $\bar { x }$ .

A) $8.4$
B) $10.5$
C) 42
D) 5