Here is the table giving the thousands of commuters in Alabama in 2015 by transportation method and one-way length of commute

If this is your table
and you want to find the marginal relative frequency of the number of people who used private vehicle as a means of transport you divide
\frac{2647}{3198} \approx 0.8277 = 0.83 (after rounding off to the nearest hundredths) = 83%
So 83% used private vehicle as a means of transportation.
Similarly, to find the marginal relative frequency of the people who used public transportation as a means of transport you divide
\frac{329}{3198} \approx 0.1028 = 0.1 (after rounding off to the nearest hundredths) = 10%
So, 10% used public transportation as a means of transport.
Similarly the marginal relative frequency of the people who used other means of transport were
\frac{222}{3198} \approx 0.0694 = 0.07 (after rounding off to the nearest hundredths) = 7%
So, 7% used other modes of transportation.
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Read more about how to find marginal relative frequency here:
I found an answer from www.quora.com
How much should one earn to afford a Tesla model 3? - Quora
That's like judging the size of an iceberg by what's visible above water level. A better way to look at affordability is total cost of ownership. Continue Reading.
For more information, see How much should one earn to afford a Tesla model 3? - Quora
I found an answer from large.stanford.edu
2016 PUBLIC TRANSPORTATION FACT BOOK
Table 37: Commuter Rail and Hybrid Rail Agencies ... publications, and a discussion of the methodology used to estimate Fact Book data may be found at the ...
For more information, see 2016 PUBLIC TRANSPORTATION FACT BOOK