Answer: It is from discrete data set.
Explanation:
Since we have given that
Volume of water in a plastic bottle = 12.3 oz
Since it is an exact value.
so, the data value is from a discrete data set.
As it is an integer value only and finite countable.
Because "Discrete data set " means the data which must be numeric form and should be based on counts.
Hence, it is from discrete data set.