Suppose f(x) = 0.25.What range of possible values can X take on and still have the density function be legitimate?

A) [0,4]
B) [4,8]
C) [−2,+2]
D) All of these choices are true.

Density Function

In probability and statistics, a mathematical function that describes the probability distribution of continuous random variables, indicating the likelihood of different outcomes.

Legitimate

Valid or acceptable according to law or established rules, often used to describe something that is recognized as genuine or correct.