I know this is a simple question but wanted to make sure as a sanity check that I am not missing some detail. I tend to read things too fast and want to make sure I am providing the information that is wanted.
QUESTION:
MY SOLUTION: Simply taking the average of the frequencies (counts) and then dividing my the number of items.
(518+451+210+72+59+12) / 6 = 220.33...
It would appear that the average is 220.33 therefore the commute time would fall between 210 to 451. Not entirely sure how to make that timeframe more exact for a time frame. All I know is that for sum range of time the number 220.33 of people cluster in that range. Somewhere from 30-44 to 15-29. I feel like I am missing a crucial detail somewhere here.
Thank you
The average commute time will be the average commute time in each row times the percentage of the populations in that row.
$$7(.3918) + 22(.3411)+37(.1589)+52(.0545)+67(.0446)+82(.0091)= 22.6945$$