Question: For each of the following answer what is the population, variable of interest, parameter, sample statistics, and sample size:

1. We liked to know about the minimum income level of customers who bought the product his company recently produced. We found the minimum income level of $20,000 from the survey of 100 customers.
2. We liked to know about the median annual living costs of the household in US. From the survey of 50 households, we found that the median annual living costs were $12,000.
3. We liked to know about the standard deviation of daily stock price of a company. We took 150 daily stock prices as a sample and knew that the standard deviation was $12.5.

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