Loading the lesson
Loading the lesson
Search AllRounder.ai
Search the courses, subjects, tracks, games and features, or jump straight to a page.
Search the courses, subjects, tracks, games and features, or jump straight to a page.
4 cards from this section. Quick, good the night before a test.
What is a discrete random variable? Provide an example.
Think about outcomes of simple experiments.
What does PMF stand for?
It's related to how we calculate probabilities for discrete variables.
What does a discrete random variable represent?
Consider how many different outcomes can be listed.
True or False: The PMF can take on negative probabilities.
Recall the basic properties of probability.
A game involves rolling a fair cube three times. What is the probability of getting exactly two sixes?
Identify n, k, and p to use the binomial formula correctly.
Given a random variable X with the following PMF: P(X=0) = 0.3, P(X=1) = 0.4, P(X=2) = 0.3. Calculate the variance.
You will need to find E[X²] first; sum the square of x times their respective probabilities.
5 more questions in this section. Enroll free to practise them all.
Enroll free