Imprecision or uncertainty is an integral component of medical decision making. This paper attempts to bring out medical decision making using arithmetic of parabolic fuzzy numbers by preparing a list of potential symptoms of a patient. Furthermore, ranking of parabolic fuzzy number is defined. Finally, the present study seeks to find out the accurate problem of the patient through the listed symptoms and an effort has been made to address the issue via the arithmetic and ranking of PFNs.
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