Question: In the context of economics, what is the primary characteristic of events that makes them suitable for modeling with a Poisson distribution?A) Events are dependent on each otherB) Events occur at a constant average… Quizzes: Poisson Distribution

Question: What does a covariance of zero between two random variables and indicate?A) and are independent.B) and are uncorrelated.C) and are dependent.D) and have the same variance. Question: If , what does this indicate about… quizzes: covariance

Question: What is the variance of a fair six-sided die roll?A) 2.5B) 3.5C) 2.9167D) 1.5 Question: If is a random variable with variance , what is ?A) 4B) 8C) 16D) 2 Answer: C) 16 Question:… Quizzes: variance

Question: What is the expected value of a fair six-sided die roll?A) 2.5B) 3.5C) 4.5D) 5.5 Question: If is a random variable with expected value , what is ?A) 2B) 4C) 6D) 8 Question: What… Quizzes: expectation

Question 1:The time between arrivals of buses at a bus stop follows an exponential distribution with a mean of 10 minutes. What is the probability that a bus will arrive within the next 5 minutes?… Quizzes: Exponential Distribution

Question: If the probability of using Facebook is 0.6 and the probability of using Instagram is 0.5, and these events are independent, what is the probability of using both Facebook and Instagram?Options:A) 0.3B) 0.9C) 0.5D)… Quizzes: independent events

Question: A music streaming service offers songs in three genres: Pop, Rock, and Jazz. The probability of a song being Pop is 0.5, Rock is 0.4, and Jazz is 0.3. If the probability of a… Quizzes: addition rules of probability