Chance between registered voters in sample are democrats

Q1) Die is rolled one thousand times. Percentage of aces must be around ____, give or take _______ or so.

a) First step in solving this problem is

i) Calculating the SD of the box.

ii) Calculating the average of the box.

iii) Setting up the box model.

Select one option and explain.

b) Now solve problem.

Q2) In certain town, there are 30,000 registered voters, of whom 12,000 are Democrats. Survey organization is about to take simple random sample of 1,000 registered voters.

a) Expected value for percentage of Democrats in sample is _______. SE for percentage of Democrats in sample is ______.

(b) Percentage of Democrats in sample is probable to be around ______, give or take ____ or so.

(c ) Determine the chance between 39% and 41% of registered voters in sample are Democrats.