if 1,000 more voters are surveyed, how many of them will likely perfer candidate 3 or 4 explain answer
Assuming that the preferences of the additional 1,000 voters surveyed are similar to the preferences of the voters already surveyed, we can estimate how many of them will likely prefer candidate 3 or 4.
If, for example, in the initial survey of 1,000 voters, 400 preferred candidate 3 and 300 preferred candidate 4, then the proportion of voters preferring either candidate 3 or 4 would be (400+300)/1000 = 0.7.
Therefore, if we survey an additional 1,000 voters, we can estimate that approximately 70% of them (0.7*1000) would prefer candidate 3 or 4. This would equate to approximately 700 voters.