A job placement agency advertised that last year its clients, on average, had a starting salary of$40,000. Assuming thataveragerefers to themean, which of the following claims must be true based on this information?

Note: More than one statement could be true. If none of the statements is true, mark the appropriate box.

1. Last year at least one of their clients had a starting salary of exactly$40,000.
2. Last year at least one of their clients had a starting salary of more than$44,000.
3. Last year, the number of their clients who had a starting salary of more than$40,000was equal to the number of their clients who had a starting salary of less than$40,000.
4. Last year all of their clients had a starting salary of at least$40,000.
5. Two years ago some of their clients had a starting salary of at least$40,000.
6. None of the above statements is true.