Lecture 6

• DATA IN THE FORM OF AN ARRAY (in ascending order), FREQUENCY DISTRIBUTION, DESCRIPTION OF VARIABLE DATA, MEASURES OF CENTRAL TENDENCY AND MEASURES OF DISPERSION, AVERAGES (I.E. MEASURES OF CENTRAL TENDENCY), VARIOUS TYPES OF AVERAGES, MODE IN CASE OF RAW DATA PERTAINING TO A CONTINUOUS VARIABLE , THE MODE IN CASE OF A DISCRETE FREQUENCY DISTRIBUTION, THE MODE IN CASE OF THE FREQUENCY DISTRIBUTION OF A CONTINUOUS VARIABLE 

                                                                                       Lecture 7

• THE ARITHMETIC MEAN, DESIRABLE PROPERTIES OF THE MODE, CLASS-MARK (MID-POINT), GROUPING ERROR, DESIRABLE PROPERTIES OF THE ARITHMETIC MEAN, WEIGHTED MEAN, MEDIAN

                                                                                       Lecture 8

• QUARTILES, FIRST QUARTILE, SECOND QUARTILE (I.E. MEDIAN), THIRD QUARTILE, DECILES & PERCENTILES

                                                                                       Lecture 9

• GEOMETRIC MEAN, GEOMETRIC MEAN FOR GROUPED DATA, HARMONIC MEAN, HARMONIC MEAN RULES, RELATION BETWEEN ARITHMETIC, GEOMETRIC AND HARMONIC MEANS, MID-RANGE, MID-QUARTILE RANGE