Answer:
a) Option b
b) 7524
Step-by-step explanation:
a) The survey is to estimate the number of adults. Hence only adults should be surveyed and not senior citizens or houseowners. Since all adults cannot be surveyed a sample strictly at random of adults can be surveyed. Since option b satisfies this, we select b as answer.
b) Given that in the survey of 25 adults 11 voted in the last election.
Hence out of 17100 adults, no of adults who voted in the last election would be
[tex]\frac{11}{25} *17100 = 7524[/tex]
So out of 17100, 7524 adults would have voted in the last election.
