Expected Return, Standard Deviation

Calculate the average rate of returns and standard deviation of the Coca-Cola stock price and the Dow Jones Index, based on the data below.

DATA		Part Solution	DATA	Part Solution
		(Current return/Previous return)-1		(Current return/Previous return)-1
Month	Coca Cola Stock Prices	Returns	Dow Jones Index Prices	Returns
Jan-20	58.40		28256.03
Feb-20	53.49	-0.08	25409.36	-0.10
Mar-20	44.25	-0.17	21917.16	-0.14
Apr-20	45.89	0.04	24345.72	0.11
May-20	46.68	0.02	25383.11	0.04
Jun-20	44.68	-0.04	25812.88	0.02
Jul-20	47.24	0.06	26428.32	0.02
Aug-20	49.53	0.05	28430.05	0.08
Sep-20	49.37	0.00	27781.7	-0.02
Oct-20	48.06	-0.03	26501.6	-0.05
Nov-20	51.60	0.07	29638.64	0.12
Dec-20	54.44	0.06	30606.48	0.03

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