a) Suggest a more suitable average in each of the following cases: (i) Average size of ready-made garments. (ii) Average marks of a student. b) State the nature of symmetry in the following cases: (i)...

a) Suggest a more suitable average in each of the following cases: (i) Average size of ready-made garments. (ii) Average marks of a student. b) State the nature of symmetry in the following cases: (i) When median is greater than mean, and (ii) When Mean is greater than median.