Questions: Your daily commute to work requires that you cross railroad tracks. At this particular railroad crossing the trains tend to be long and slow, So, getting stopped by a train will likely make you late for work. You start recording data to determine the likelihood of arriving at the tracks while a train is there. The data contain the day number and whether a train was present, or not, for 200 consecutive days in which you drove to work in the data set, the column Train shows a series of 0s and 1s. In that column a 0 indicates there was no train present and a 1 indicates that a train was present. The column Aggregate Train represents the cumulative number of times a train was present. Consider the first 10 days of data. For this time period, what proportion of days had a train present? (Round to four decimal places as needed)

Transcript text: Your daily commute to work requires that you cross railroad tracks. At this particular railroad crossing the trains tend to be long and slow, So, getting stopped by a train will likely make you late for work. You start recording data to determine the likelihood of arriving at the tracks while a train is there. The data contain the day number and whether a train was present, or not, for 200 consecutive days in which you drove to work in the data set, the column Train shows a series of 0s and 1s. In that column a 0 indicates there was no train present and a 1 indicates that a train was present. The column Aggregate Train represents the cumulative number of times a train was present. Consider the first 10 days of data. For this time period, what proportion of days had a train present? $\square$ (Round to four decimal places as needed)