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Merits of mode:, , (i) Simple and popular measure of central, tendency., , (ii) It can be located graphically with the, help of histogram., , (iii) Less effect of marginal values., , (iv) No need of knowing all the items of, series., , (v) It is the most representative value in, the given series., , (vi) It is less effected by extreme values., Demerits of mode:, , (i) It is an uncertain measure., , (ii) It is not capable of algebraic treatment., (iii) Procedure of grouping is complex., (iv) It is not based on all observations., , (v) For bi- modal and tri-modal series, it is, difficult to calculate., , (vi) Its value is not based on each and, every item of the series., , (vii) If items are identical, it is difficult to, identify the modal value., , Relation among mean, median and mode: