Help please!

[pikapika]

A car company conducted a study to understand the relationship between age groups and drivers’ primary vehicles. (Their primary vehicle is the single vehicle that they drive most often.) Selecting and contacting a random sample of 350 drivers, the company compiled the results of their data collection in the following table.

Station Wagons & Vans | Sedans | Sports & SUV’s | Other
Less than 35 | 17 | 34 | 22 | 11
36 thru 55 | 46 | 49 | 40 | 15
56 and above | 32 | 61 | 16 | 7

Does is seem likely that the two events, selecting an older driver (56 and above) and selecting Station Wagon/Van driver, are independent events? Explain your answer.
I thought that they wouldn't be because some older people may prefer station wagons and vans.

Of the 12 sub-categories in the above table, which pairs are mutually-exclusive. Explain how you arrived at your answer.
I really am not sure how to do this question. I tried but it just doesn't seem to make sense to me. Please help!

Thank you so much!

[Mean Joe]

Does is seem likely that the two events, selecting an older driver (56 and above) and selecting Station Wagon/Van driver, are independent events? Explain your answer.
I thought that they wouldn't be because some older people may prefer station wagons and vans.

You can employ statistics to support your intuition. Try a chi-square test.

Of the 12 sub-categories in the above table, which pairs are mutually-exclusive. Explain how you arrived at your answer.

So that you don't have to explain that someone named Mean Joe gave you the answer, think about this:
Is it possible for a "less than 35" to have a primary station wagon, and a primary sedan? What about the possibility of being "less than 35" and "56 and above"? If it's impossible to be both, then the categories are mutually exclusive.