The quarterly profits of a small scale industry (in thousands of rupees) is as follows:
| Year |
Quarter 1 |
Quarter 2 |
Quarter 3 |
Quarter 4 |
| 2012 |
39 |
47 |
20 |
56 |
| 2013 |
68 |
59 |
66 |
72 |
| 2014 |
88 |
60 |
60 |
67 |
Calculate four quarterly moving averages. Display these and the original figures graphically on the same graph sheet.
