In Cyprus City there are 12,000 adults. 7,500 of the adults in the town are registered, voters. In a poll to predict who will be the next mayor, a statistician asks 500 registered voters who they plan on voting for mayor. How many people are in the population of registered voters? And how many people are in the sample taken by the statistician?
* put your answer in as two numbers with a comma in between - no units
Ex: 2,500, 400