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Answer:
The domain is always discrete when it is found from a table.
Step-by-step explanation:
A table necessarily lists a finite number of discrete points. The domain, as found from a table, is <em>always discrete</em>.
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If the table is said to be a representation of a continuous function, then the domain of that continuous function will be continuous.
Your question seems to have to do with <em>a table alone</em>, not a table and an equation, or a table and a graph. A table (of points) alone cannot express a continuous domain.
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<em>Additional comments</em>
One can conceive of tables that would have continuous domains, as, for example, a table with entries ...
(x, y) = (0 ≤ x < 3, 3x+2), (3 ≤ x < 6, 4x-1), ...
Such a table is not a list of points, but is a piecewise function definition. We presume this is not what you're concerned with.
