A test score is generally discrete; one can score 89, 92, or 50, but one wouldn't score something like 82.3455456467. Even if the correct/total division resulted in a non-integer, it'd be discretized during the rounding process.
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Discrete.
It is discrete even though time itself is continuous.
Discrete random variable
discrete
Generally continuous but it is discrete if you look at one cupful, two cupfuls, etc (or spoonful or bucketful).