Texas Instruments TI86 User Manual - Page 205

Chapter 14: Statistics 193 These words are abbreviated in the table: pop = population std dev = standard deviation coeff = coefficient int = intercept reg eq = regression equation pts = points min = minimum max = maximum Result Variables 1-Var Stats mean of x values v pop std dev of x sx sample std dev of x Sx mean of y values pop std dev of y sample std dev of y sum of x values Gx sum of x2 values Gx2 sum of y values sum of y2 values sum of x ¹ y regression equation polynomial, LgstR, and SinR coeff's 2-Var Stats v sx Sx w sy Sy Gx Gx2 Gy Gy2 Gxy Other RegEq a (y-int) b (slope) Result Variables 1-Var Stats correlation coeff y-intercept of reg eq slope of reg eq regressionàfit coeff number of data pts n min of x values minX max of x values maxX min of y values max of y values median Med 1st quartile 3rd quartile polynomial LgstR, and SinR reg coeff's 2-Var Stats n minX maxX minY maxY Other corr a b a, b Qrtl1 Qrtl3 PRegC The first quartile (Qrtl1) is the median of the points between minX and Med (median). The third quartile (Qrtl3) is the median of the points between Med and maxX. When you calculate a logistic regression, 1 is stored to tolMet (tolMe) if the TI-86 internal tolerance was met before the calculator arrived at a result; if not met, 0 is stored to tolMet.