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why is nominal data discrete?

- ordinal data

ordinal data is data that is?

like asking people to do what with how stressed they feel after watching project x?

does it have equal intervals between each unit?

e.g would it make sense to say someone that rated an 8 was twice as stressed as someone @ a 4?

why does ordinal data lack precision?

for these reasons ordinal data sometimes refered to as what kind of data bc lacks precision?

is it a part of statistical testing?

why?