Question

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Answer 1

Looking at it.

Answer 2

Weird problem. Putting a copy of the chart here:

Answer 3

Folks make these charts to be a helpful tool; and I think the point of the problem is to give you practice using it. Each row, and each column, has to add to 120, because that is the number of people surveyed.

Do you see any holes we can fill in, where we know two answers and can figure out the third?

Answer 4

I think I need to log out and back in; BRB.