Help with statistics question??? (Sample Distributions)?

Before next Alberta provincial election, a polling company conducts a survey to predict the fraction of eligible voters who will actually vote. The pollsters carefully select a sample of 1000 eligible voters (stratified in many ways: income, geography, cell-phone preference, etc.), and they carefully design the survey to account for people who like to lie to pollsters. Four hundred and forty four people (444) say that they will vote.





a)What is the polling company’s best prediction of the fraction of eligible voters who will vote in the election?





b)Calculate the standard deviation of sample proportions.

Help with statistics question??? (Sample Distributions)?
a) sample proportion, p = 444 / 1000





b) SD = sqrt [ np(1-p) ] = sqrt (246.864)