Final answer:
The statement "If a contact lens has a scratch on it, the manufacturer classifies it as defective. This is an example of a continuous variable" is False.
Step-by-step explanation:
The classification of a contact lens as defective due to a scratch on it is an example of a categorical variable, not a continuous variable.
A categorical variable is one that has two or more category values from which to choose but does not have an intrinsic order.
In this case, the variable in question is 'defective' or 'not defective,' and the presence of a scratch categorizes the lens into one of these two distinct groups.
Therefore, the statement is False. Continuous variables, on the other hand, would be those that can take on any value within a range, such as the power of the contact lens or the diameter of the lens.
Hence, the statement is False.