This is called the mean deviation, i.e. mean deviation = , where n is the number of students in the class. For class 1 this is 64/5 = 12.8. Another way to deal with the negative differences is to square each difference before adding.
n. 1. Two individuals or units regarded as a pair: the mother-daughter dyad.2. Biology One pair of homologous chromosomes resulting from the division of a tetrad during meiosis.yad. n. 1. (Mathematics) maths an operator that is the unspecified product of two vectors. It can operate on a vector to produce either a scalar or vector product. 2. (Chemistry) an atom or group that has a valency of two.
Definition of YOD. : the 10th letter of the Hebrew alphabet â see alphabet table. ADVERTISEMENT. Hebrew yÅdh.