Basic Statistics Formulas Pdf. Sample mean x 1 n x x. X x1 x2 xn n 1 n.
6 4 2009 11 56 03 am. Descriptions of statistics formulas mean. Ix 2 2 standard deviation r 1 n x x.
N total number of observations.
Mean use a calculator. I 1 variance 2 1 n x x. Applied statistics a subject called applied statistics is one branch of statistics that involves formulas for simple random sampling. S 1 n 1 xi x 2 median.
