Module 2â Unit 2 Industrial Insulation Phase 2 2 Orthographic Projections Revision 2.0, August 2014 Introduction Orthographic projection is a means of representing a three dimensional object on a plane surface.Two principal planes are used in orthographic projection, one horizonta l and one vertical.odule 2â Unit 2 Industrial Insulation Phase 2 15 Orthographic Projections Revision 2.0, August 2014 2.4 Dimensioning The addition of sizes and measurements to a drawing is known as âdimensioningâ. Dimensions tell us the exact distance between two points of surfaces, therefore it is essential that they are legible.
The value of a correlation coefficient ranges between -1 and 1. The greater the absolute value of a correlation coefficient, the stronger the linear relationship. The strongest linear relationship is indicated by a correlation coefficient of -1 or 1. The weakest linear relationship is indicated by a correlation coefficient equal to 0.
This page will calculate the 0.95 and 0.99 confidence intervals for rho, based on the Fisher r-to-z transformation. For the notation used here, r = the Pearson product-moment correlation coefficient observed within the sample and n = the number of paired XY observations on which the sample r is based. For purposes of this calculation, the value of n must be equal to or greater than 4. To perform the calculations, enter the values of r and n in the designated places, then click the Â«CalculateÂ» button. Note that the confidence interval of rho is symmetrical around the observed r only with large values of n.