Examples CH 4
1. Calculate the mean for the discrete probability distribution shown here. X 2 P(X) .2 4 .2 5 .3 10 .2
Answer: = xp(x) = 2(.2) + 4(.3) + 5(.3) + 10(.2) = 5.1 2. Ladies Home Journal polled its readers to determine the
proportion of wives who
Class examples
I.
(Review for the test 2)
STA 2023
The length of time to complete a door assembly on an automobile factory assembly line is
distributed with mean = 7.0 minutes and standard deviation = 5.0 minutes. What is the
probability that the mean ass
MBA535 (Analytical Tools for Decision-Making)
Marist College
Week 1 Assessment (20 points each question; 80 points total)
Question 1. A sample of 200 students at a Big-Ten university was taken after the midterm to ask
them whether they went bar hopping th