Poisson Distribution Test

Unit Test #69

Select your answers to the following 5 questions from the pop-up menus in the right hand column. Clicking the "Begin Test Again" button will clear all the answers.

 Q1: The random variable X has a Poisson distribution with parameter λ = 1.7. Find P(X = 2) A. 0.3476B. 0.1217C. 0.2640D. 0.0975 Answer 1: A                    B                    C                    D Q2: The expected value E(X) of the distribution in question 1 is: A. 2B. 0.264C. 1.7D. 3.4 Answer 2: A                    B                    C                    D Q3: The discrete random variable X = the number of trains leaving Wellington railway station each day that are delayed. If the average number of delayed trains is 4, what is the probability that exactly 3 trains will be late? A. 0.1954B. 0.1680C. 0.1465D. 0.5862 Answer 3: A                    B                    C                    D Q4: What is the standard deviation of X in question 3 A. 4B. 16C. 2D. 0.1954 Answer 4: A                    B                    C                    D Q5: What is the probability in question 3, that all trains on a particular day will leave on time? A. 0. 9048B. 0.0733C. 0D. 0.0183 Answer 5: A                    B                    C                    D