A nuclear stress test is a noninvasive means of detecting the presence and/or signiï¬ cance of coronary. artery disease. Coronary artery disease is a condition in which there is narrowing or blockage of the blood. vessels supplying the heart muscle. This can cause chest pain which is known as angina pectoris.
coefficient. n. 1. (Mathematics) maths. a. a numerical or constant factor in an algebraic term: the coefficient of the term 3xyz is 3. b. the product of all the factors of a term excluding one or more specified variables: the coefficient of x in 3axyz is 3ayz.
Loading the player... The correlation coefficient is a measure of how closely two variables move in relation to one another. If one variable goes up by a certain amount, the correlation coefficient indicates which way the other variable moves and by how much. The mathematical formula for the correlation coefficient looks like this: where n is the number of pairs of data.