Which of the following events has a theoretical probability equal to $\frac{1}{3}$?

How many different simple random samples of size $3$ can be selected from a population of size $7$?

Which of the following examples best represents a simple random sample?

In the context of basic probability, does a $probability$ distribution function always have to be defined by a mathematical formula with parameters?

Statistical methods are most effective for analyzing which type of data?

In a survey, people are classified based on whether they can see the sunrise, the sunset, both, or neither. Which of the following best describes the joint relative frequency for the people who can only see the sunset?

Which of the following describes a compound event in probability?

Which of the following best illustrates the definition of a probability distribution?