A teacher arranges her students in a line from tallest to shortest and then numbers them from 1 to 20, starting with the tallest. Given this information, which of the following is TRUE?
a. Height of students is an ordinal variable.
b. Height of students is a nominal variable.
c. The assigned numbers are nominal.
d. The assigned numbers are ordinal.
e. The assigned numbers are ratio.
Ans: d
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