Im thinking its b because if I did it correctly, I put them least to greatest before adding 78 and got 77 as the median. if 78 is added, the median is a tie between 77 and 78. I think then you subtract it to find the new median? if so I got 1. and that's down from 77 I think I need to go back to fifth grade. help?

Unaware that 35% of the 10000 voters in his constituency support him, a politician decides to estimate his political strength. a sample of 200 voters shows that 40% support him. a. what is the population? b. what is the parameter of interest? state its value c. what is the statistics of the interest? state its value d. compare your answers in (b) and (c) is it surprising they are different? if the politician were to sample another 200 voters, which of the two numbers would most likely change? explain