Answer:
Answer: A. -32.75
[tex] \dashrightarrow{ \tt{mean = \frac{ \sum f(n)}{n} }} \\ [/tex]
• f(n) are the values of the set
• n is the number of items
[tex] \dashrightarrow \: { \tt{mean = \frac{ - 78 + ( - 12) + 3 + ( - 44)}{4} }} \\ \\ \dashrightarrow \: { \tt{ \frac{ - 131}{4} }} \\ \\ \dashrightarrow \: { \boxed{ \tt{mean = - 32.75}}}[/tex]
