Final answer:
The data set of books read by a friend over five months is at the nominal level of measurement, as the book titles are simply categories without any inherent order or quantitative value.
Step-by-step explanation:
The list of books that your friend read for the past five months are Kiss The Dead, The Forgotten, Threat Vector, The Racketeer, and Spring Fever. The data set of books read by a friend over five months is at the nominal level of measurement, as the book titles are simply categories without any inherent order or quantitative value.
The level of measurement for this data set would be nominal. This is because the data is made up of labels or names to identify attributes of an element and the labels do not have a quantitative value.
Furthermore, there is no specific order or ranking to the titles listed; they are merely categories of different books that your friend has read. There is no inherent order or hierarchy in the data provided, nor can you perform any arithmetic operations on them.