One doctor warns that 3 out of 10 people who are not vaccinated will suffer from flu symptoms. If the doctor is right, how many people (unvaccinated) will suffer from flu symptoms in a city with one million non-vaccinated inhabitants? If 12,000 unvaccinated people suffer from the flu, how many unvaccinated people will not suffer from the flu?

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