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Looking at levels of measurements

An analyst wants to research how pets can impact stress. Current pet owners were asked what their first pet was, first_pet, how many pets they currently have, current_pets, the amount of time they spend with their pets, time_spent, and whether they feel that having a pet decreases stress, reduces_stress.

What level of measurement would the variable, first_pet, be?

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Analyzing Survey Data in Python

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