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Lamont designs a survey of town residents in an attempt to predict who will be elected mayor. He chooses his sample of 500 people from the town’s 40,000 residents by asking his question to every person leaving the public library on a Saturday. Which suggestion would most improve Lamont’s random sample?

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Answer:

Lamont should sample only registered voters.

Step-by-step explanation:

Since Lamont is trying to predict who will be elected, surveying people that are not registered to vote will not give him an accurate prediction.  If someone is not registered to vote, they cannot vote for any candidate.

To get more accurate results, Lamont should only sample people that are registered voters.

The suggestion would most improve Lamont’s random sample is given by: Option B: Lamont should sample only registered voters.

Why do we do sampling?

We do sampling so that we don't have to work on entire population of items but only on that sample in a way that we can predict information about population.

Most of the times, it isn't possible in real world to work on entire populations. Samples come out for rescue by assumptions that they will have some properties of the population pertained in them.

Thus, the sample should be taken out such that it includes data of the population as much  as it can in unbiased way so as to imitate population. (assuming that we want the sample to contain the summary of the population).

The missing options are:

  1. Lamont should sample only adults.
  2. Lamont should sample only registered voters.
  3. Lamont should decrease the sample size.
  4. Lamont should ask every fifth person.

For this case, Lamont wants to collect data such that he could predict about the election's result.

The election's results are decided by votes of registered voters.

So, the opinion of registered voters is all that matters (assuming that there is no influence on the voters from non-registered voters after the survey and before the final election).

Thus, the population he should target is those registered voters.

(we also assumed that after the survey and before the election, not a significant number of adults became registered voters).

Thus, the suggestion would most improve Lamont’s random sample is given by: Option B: Lamont should sample only registered voters.

Learn more about sampling here:

https://brainly.com/question/9724150