Find the Mean of the Data in the Following Stem-And-Leaf $\begin{array} { l | l } \hline 1 & 2288 \\2 & 018 \\3 & 58 \\4 & 6\end{array}$

Multiple Choice

Find the mean of the data in the following stem-and-leaf plot. The leaf represents the ones digit.
$\begin{array} { l | l } \hline 1 & 2288 \\2 & 018 \\3 & 58 \\4 & 6\end{array}$

A) 12
B) 20.5
C) 21
D) 24.8