Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Round | Pick | Player | Nationality | College |
| --- | --- | --- | --- | --- |
| 3.0 | 69.0 | Willie Glass | United States | St. John's |
| 4.0 | 92.0 | Ralph Tally | United States | Norfolk State |
| 6.0 | 115.0 | Kenny Travis | United States | New Mexico State |
| 6.0 | 138.0 | Frank Ford | United States | Auburn University |
| 7.0 | 161.0 | Ron Vanderschaaf | Netherlands | Central Washington University |
Question:
What is the sum of Round, when College is "Norfolk State"?
Answer:
4.0