4. Statistics and Probability
Discrete Distributions — Quiz
Test your understanding of discrete distributions with 5 practice questions.
Practice Questions
Question 1
Which of the following is a key characteristic of a binomial distribution?
Question 2
A fair coin is tossed 5 times. What is the probability of getting exactly 3 heads?
Question 3
Which of the following statements is true about the expected value of a binomial distribution with parameters $n$ and $p$?
Question 4
If $X$ is a geometric random variable with success probability $p=0.2$, what is the probability that the first success occurs on the 4th trial?
Question 5
Which of the following best describes the variance of a geometric distribution with success probability $p$?