Hantavirus is carried by wild rodents and causes severe lung disease in humans. A recent study on the California Channel Islands found that increased prevalence of the virus was linked with greater precipitation. The study adds "Precipitation accounted for 79% of the variation in prevalence." (a) What notation or terminology do we use for the value 79% in this context? (b) What is the response variable? What is the explanatory variable? (c) What is the correlation between the two variables?
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