NP: Nurse Practitioner Nurse practitioners are healthcare professionals that complete advanced, graduate level educational programs that enable them to practice independently or in collaboration with other health care professionals and other individuals to diagnose, treat and manage the patient's health problems.
sum. n. 1. Mathematics. a. An amount obtained as a result of adding numbers. b. An arithmetic problem: a child good at sums. 2. The whole amount, quantity, or number; an aggregate: the sum of the team's combined experience. 3.
measure of central tendency because it is the single value that is common to all scores. The etymology of mean and sum illustrates this point well. Sum originates from the Latin noun. summa, which refers to the whole or the total of the parts (Partridge 1977).