hi please explain step by step and what u did
Mean = [Ri] / n
= [4.7% + 16.4% + 30.1% + 19.9%] / 4 = 71.1% / 4 = 17.775%
S.D. = [{(mean - Ri)2} / (n - 1)]1/2
= [{(4.7% - 17.775%)2 + (16.4% - 17.775%)2 + (30.1% - 17.775%)2 + (19.9% - 17.775%)2}
/ (4 - 1)]1/2
= [329.27 / 3]1/2 = [109.76]1/2 = 10.48%
Hence, Option "B" is correct.
hi please explain step by step and what u did The last 4-year stock returns of...
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