Lucy is estimating the income levels of households in a specific zip code. She randomly calls 100 households and collects information about their income levels. Which of the following is not true?
Select the correct answer below:
The average income level of all households in the zip code is a population parameter.
O The total income of the surveyed households is a sample statistic.
O The average income of the surveyed households is a sample data.
The surveyed households are considered a sample of the overall population of households living in the zip code.
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