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

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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.
 Commute Length  Number af Observations  commute time <10 minutes 110 commute time <20 minutes 220 commute time <30 minutes 430 commute time <40 minutes 940 commute time <50 minutes 4\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?


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