Using examples, describe the following test data.
i) Extreme data
ii) Normal data
iii) Abnormal data
Answer:
i) Extreme data: These are data that fall within the lower or upper limits. Examples are obtaining 100% or 0% in an examination.
ii) Normal data: These are data that fall within the limit. An example is obtaining
50% in an examination.
iii) Abnormal data: These are data that fall outside the lower or the upper limits. An example is obtaining 120% in an examination.