Answer:
Non response error
Explanation:
Non response error - it is refer to that error of sampling when samples are not taken into consideration. In this case samples do not replied either they are not ready reply or do not want to reply.
In the given question also 1000 sample units is taken into consideration but only 1 % has respond which show that sample do not respond to the survey.
Answer:
Political parties can use voter-data management systems to tailor their policies to fit their constituents best and maximize voter turnout.
That's how politicians interact with the voters.
"...Politicians and their campaigns use these lists to perceive the electorate".
