Social Studies, 01.05.2021 18:00 greciakawaii

Before Jonas Salk discovered a vaccine to prevent polio, people noticed a correlation between outside temperature and the incidence of polio: The warmer the temperature over the course of the year, the more outbreaks of polio. This relationship is an example of a(n) correlation. a. negative
b. positive
c. spurious
d. illusory

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