Find the mean for the given sample data. Unless indicated otherwise, round your answer to one more decimal place than is present in the original data values.
-Listed below are the amounts of weight change (in pounds) for 12 women during their first year of work after graduating from college. Positive values correspond to women who gained weight and negative values correspond to women who lost weight. What is the mean weight change?
$$\begin{array} { l l l l l l l l l l l l }
1 & - 10 & 1 & - 9 & 17 & - 5 & 12 & 0 & 16 & - 4 & 18 & 7
\end{array}$$
A) 1 lb
B) 4 lb
C) 8.3 lb
D) 3.7 lb

Question

Find the mean for the given sample data. Unless indicated otherwise, round your answer to one more decimal place than is present in the original data values.
-Listed below are the amounts of weight change (in pounds) for 12 women during their first year of work after graduating from college. Positive values correspond to women who gained weight and negative values correspond to women who lost weight. What is the mean weight change? 
$$\begin{array} { l l l l l l l l l l l l } 
1 & - 10 & 1 & - 9 & 17 & - 5 & 12 & 0 & 16 & - 4 & 18 & 7
\end{array}$$
A) 1 lb
B) 4 lb
C) 8.3 lb
D) 3.7 lb

Quizplus · Accepted Answer

The mean is calculated by summing all the weight changes and dividing by the number of data points: (1 - 10 + 1 - 9 + 17 - 5 + 12 + 0 + 16 - 4 + 18 + 7) / 12 = 3.7 lb.

Find the Mean for the Given Sample Data 1−101−917−512016−4187\begin{array} { l l l l l l l l l l l l } 1 & - 10 & 1 & - 9 & 17 & - 5 & 12 & 0 & 16 & - 4 & 18 & 7\end{array}1​−10​1​−9​17​−5​12​0​16​−4​18​7​

Find the Mean for the Given Sample Data $\begin{array} { l l l l l l l l l l l l } 1 & - 10 & 1 & - 9 & 17 & - 5 & 12 & 0 & 16 & - 4 & 18 & 7\end{array}$