... (1970) Harper and Row, New York. 3. Stoer, J. and Bulirsch, R., "Introduction to Numerical Analysis& quot; (1980), Springer-Verlag, New York, §2.2. 4. Gradshteyn, I.S. and Ryzhik,I.M., ... marked the location of the values for the upper and lower quartiles, median and mode 214 Figure 1.1 shows a comparison between the normal curve and the t-distribution function for N = 8. The ... function, then if Numerical Methods and Data Analysis 86 x0)x(t)x(t21∀=•GG , (3.3.1) one could conclude from equation (3.3.1) that f1(x) and f2(x) were mutually perpendicular...