For the Following Distribution,how Many People Had Scores Less Than $$\begin{array} { l l } \mathrm { X } & \mathrm { f } \\20 - 25 & 2 \\15 - 19 & 5 \\10 - 14 & 4 \\5 - 9 & 1 \\\hline\end{array}$$

Multiple Choice

For the following distribution,how many people had scores less than X = 20?? $$\begin{array} { l l } \mathrm { X } & \mathrm { f } \\20 - 25 & 2 \\15 - 19 & 5 \\10 - 14 & 4 \\5 - 9 & 1 \\\hline\end{array}$$

A) ?5
B) ?10
C) ?11
D) ?12