How much does the annual cost of driving increase when the mileage increases from 4000 to 8000 miles?
the cost for 4000 miles is 5400 dollars and for 8000 its 6100 dollars.

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