The mayor of the city of san diego wants to increase taxes to invest in a modern transit system. she hires a polling agency to select at random 650 registered voters in the city to survey to determine the maximum percentage increase in municipal taxes that they would approve. part a: what is the population in this survey? explain your answer using complete sentences. (1 point) part b: what is the population parameter? explain your answer using complete sentences. (2 points) part c: what is the sample in this survey? explain your answer using complete sentences. (2 points)