Question

Which of the following statements is correct?
Population parameters are used to make inferences about sample statistics.
Population statistics are used to make inferences about sample parameters.
Sample parameters are used to make inferences about population statistics.
Sample statistics are used to make inferences about population parameters.

Answer 1

Let's start by unpacking these terms. A sample is used to make an inference about a population.

Answer 2

what is a mean of a sample called, or the standard deviation of a sample called , or the median, we call that... ?