2. Calculate the arithmetic mean of the monthly HPRs for Southwest.
4. Calculate the geometric mean of the monthly HPRs for Southwest.
6. Expand the spreadsheet to calculate the standard deviation of the monthly HPRs using an approach similar to the one illustrated in the Measuring Risk section of Lesson 1.
8. Calculate the monthly 5% VaR using the variance-covariance approach.
10. Calculate the annualized version of your answers from parts 2, 3 and 4. (Your answers should be the annualized versions of only the final answers of parts 2, 3 and 4, not annualized versions of each monthly HPR.)

Date	Close	Dividend	HPR	HPR +1
Apr-15	40.56	0
May-15	37.05	0
Jun-15	33.09	0.075
Jul-15	36.2	0
Aug-15	36.7	0.075
Sep-15	38.04	0
Oct-15	46.29	0
Nov-15	45.88	0
Dec-15	43.06	0.075
Jan-16	37.62	0
Feb-16	41.95	0
Mar-16	44.8	0.075
Apr-16	44.61	0
May-16	42.48	0
Jun-16	39.21	0.1
Jul-16	37.01	0
Aug-16	36.88	0.1
Sep-16	38.89	0
Oct-16	40.05	0
Nov-16	46.61	0
Dec-16	49.84	0.1
Jan-17	52.31	0
Feb-17	57.8	0
Mar-17	53.76	0.1
Apr-17	56.22	0
Report your final results in the cells below
Arithmetic mean of monthly HPRs:
Geometric mean of monthly HPRs:
Standard deviation of monthly HPRs:
5% VaR
Annualized HPR (arithmetic):
Annualized HPR (geometric):
Annualized standard deviation: