Horatio Oscar Vineeth Lane (HOV Lane for Short) Records His

Short Answer

Horatio Oscar Vineeth Lane (HOV Lane for short) records his commute times for a period of one month and assigned them to five different categories as shown in the table.
$$\begin{array} { | c | c | } \hline \text { Commute Length } & \text { Number af Observations } \\\hline \text { commute time } < 10 \text { minutes } & 1 \\\hline 10 \leq \text { commute time } < 20 \text { minutes } & 2 \\\hline 20 \leq \text { commute time } < 30 \text { minutes } & 4 \\\hline 30 \leq \text { commute time } < 40 \text { minutes } & 9 \\\hline 40 \leq \text { commute time } < 50 \text { minutes } & 4 \\\hline\end{array}$$
-What is the cumulative probability for the three shortest commute categories?