A Botany Student Measured the Lengths of a Sample of Leaves

Multiple Choice

A botany student measured the lengths of a sample of leaves to the nearest centimeter. The data is shown in the frequency distribution below. Use the data to approximate the mean to the nearest Tenth of a centimeter.

$\begin{array} { | c | c | } \hline \text { Length } & \text { Frequency } \\\hline 0 - 5 & 4 \\\hline 6 - 11 & 7 \\\hline 12 - 17 & 13 \\\hline 18 - 23 & 18 \\\hline 24 - 29 & 8 \\\hline 30 - 35 & 5 \\\hline\end{array}$

A) 18.2 cm
B) 9.2 cm
C) 18.7 cm
D) 5.8 cm