Date	Open	High	Low	Close	Adj Close	Volume
23/04/2018	12.9	13.35	12.9	13.2	11.814017	3692900
24/04/2018	13.29	13.64	13.12	13.41	12.001967	3613600
25/04/2018	13.35	13.63	13.29	13.46	12.046718	3647100
26/04/2018	13.6	13.88	13.45	13.67	12.234669	3212000
27/04/2018	13.68	13.91	13.6	13.86	12.404718	2500600
30/04/2018	13.97	14	13.56	13.65	12.216769	3151900

**please include excel formula**

- use the figures in the chart above to help calculate each of the following -

In the excel data above how do you calculate the following;

1. The minimum daily return 2 the maximum daily return 3. A count of the number of observations on return 4. graph a time series of daily returns.