Write a query to compute minimum, average and maximum street lengths in the table streets.
| street_name | bus_stops | crossings | is_one_way | length |
|---|---|---|---|---|
| Brickstone | 2 | 0 | no | 3 |
| Red Woods | 4 | 5 | no | 10 |
| Water Sports Arena | 1 | 0 | yes | 3 |
| Sun Valley | 10 | 10 | no | 15 |
| River Shore | 3 | 3 | yes | 8 |