Instruction 2-7
the Stem-And-Leaf Display Below Contains Data on the Number

Instruction 2-7
The Stem-and-Leaf display below contains data on the number of months between the date a civil suit is filed and when the case is actually adjudicated for 50 cases heard in the Supreme Court of Victoria.
$$\begin{array} { l l } \text { Stem } & \text { Leaves } \\\hline \hline 1 \mathrm {~L} & 23444 \\1 \mathrm { H } & 7899 \\2 \mathrm {~L} & 22223455 \\2 \mathrm { H } & 678889 \\3 \mathrm {~L} & 001113 \\3 \mathrm { H } & 5778 \\4 \mathrm {~L} & 0234 \\4 \mathrm { H } & 5579 \\5 \mathrm {~L} & 1124 \\5 \mathrm { H } & 66 \\6 \mathrm {~L} & 15 \\6 \mathrm { H } & 8\end{array}$$ Note: 1L means the "low teens" - 10,11,12,13,or 14;1H means the "high teens" - 15,16,17,18,or 19;2L means the "low twenties" - 20,21,22,23,or 24,etc.
-Referring to Instruction 2-7,if a frequency distribution with equal sized classes was made from this data,and the first class was "10 but less than 20",the cumulative percentage of the second class would be ________.