please answer the question ii

gevstion muse moot desirable by thin mitasure? Exyikin (4) Compote the standant deviation of the ammal rate of rcourn for foch sock By this mearare which wieck is pefferable? I Iplaia (iii) Compute the coefficient of vartation for abch stock. By this relative meanuse, which stock is preferahile? Explain (iv) Compute the geometric mean rate of rotum for each stock. (v) Disesss the difference between the arithmetic mean retian and the geametrie mean retum for each steck