Answer: p and q
Explanation:
We know that the sample proportion is the best estimate to the population proportion. (1)
Given : A student conducted a survey of all 500 employees in a company. He calculated the population mean of the number of cars they owned to be x%. He calculated the proportion of employees who drove a car to work to be y%.
Another student conducted a survey of a sample of 10 employees in the same company.
She found the sample mean of the number of cars they owned to be p%. She found the sample proportion of employees who drove a car to work to be q%.
i.e. From (1) p% is the best estimate for x% and q% is the best estimate for y%.
Hence, the parameter would be considered to be point estimates are : p and q