a researcher has a well developed theory that air pollution is directly related to persons living in areas with air pollution also having a higher incidence of dementia. in order to determine if there is a correlation between us air quality readings and dementia patients, what data mining method could be used to confirm this relationship?

An air compression refrigeration system is to have an air pressure of 100 psia in the brine tank and an allowable air temperature increase of 60°f for standard vapor compression cycle temperatures of 77 f entering the expansion cylinder and 14 f entering the compression cylinder, calculate the coefficient of performance a. 2.5 b 3.3 c. 4.0 d. 5.0