I think that's an optimistic count of the number of participants.
Aristotle was optimistic of great achievements over the whole range of the sciences.
Kant, though pessimistic as regards the actual man, is optimistic regarding his moral capacity.
His three hundred letters reveal a rich and observant nature, which, despite the troubles of ill-health and ecclesiastical unrest, remained optimistic, tender and even playful.
This, the original doctrine of the Buddha, though not adopted in the full sense by all his followers, is in fact at least as optimistic as any optimism of the West.
Jorge was optimistic and always saw the best in every situation.
One way to keep from being frantic is to take deep breaths and think about the optimistic side of the situation.
Pessimists can learn to be more optimistic by distracting themselves from negative thoughts and looking for the humor in life.
If you surround yourself with optimistic friends, you are less likely to have a pessimistic attitude.
Kevin would rather spend time with Bob, his optimistic friend, than his cynical and gloomy friend, Victor.
Sarah had a sunny and optimistic nature; her mother always said Sarah wore rose-colored glasses.
The doctor was optimistic that this treatment would put his patient's cancer into remission.