Basic Statistics Formulas. I 4 sample variance s2 x 1 n 1 x x. The median of a numerical data.
Frequently used statistics formulas and tables chapter 2 highest value lowest value class width increase to next integer number classes upper limit lower limit class midpoint 2 chapter 3 sample size population size frequency n n f sum w weight σ sample mean. N total number of observations. Combination c n r n.
Ix 2 2 standard deviation r 1 n x x.
X observations given. Median n 2 term n 2 1 2. These are the basic statistics formula to calculate the median of the given data. Chebyshev s theorem 1 1 k 2 circular permutation p n n 1.
