A correlation coefficient is a numerical index a.            That is represented by the square root of variance b.            Ranging from –1.00 to +1.00 c.             Of cases falling within 1, 2,...

A correlation coefficient is a numerical index

a.            That is represented by the square root of variance

b.            Ranging from –1.00 to +1.00

c.             Of cases falling within 1, 2, and 3 standard deviations from the mean on a normal distribution

d.            That falls within one standard deviation from the mean on a bell curve