Messages
Proposals
Get Urgent Writing Help In Your Essays, Assignments, Homeworks, Dissertation, Thesis Or Coursework & Achieve A+ Grades.
Privacy Guaranteed - 100% Plagiarism Free Writing - Free Turnitin Report - Professional And Experienced Writers - 24/7 Online Support
1. A random variable x represent the flight time of an airplane travelling from Cincinnati to New York. Suppose the flight time can be any value in the interval from 80 minutes to 100 minutes and the flight time is said to follow a uniform distribution between 80 and 100 minutes.
(a) Write down the probability density function for the distribution
(b) Draw a graph for this probability density function
(c) What is the probability that the flight time is between 80 and 90 minutes?
(d) Compute the expected value of the random variable x
2. (a) Aside the method of simple sampling, name other sampling methods.
(b) Give two characteristics of the normal distribution
3. (a) (5 points) The annual salaries of CEOs in the U.S are normally distributed with a mean, (in thousands) and standard deviation
(in thousands). If a CEO is selected at random, what is the probability that his/her annual salary is less than
(in thousands)?
(b) (5 points) A population of accountants has a mean annual salary and standard deviation
. If a random sampling of
is selected from the entire population, find the probability that the sample mean annual salary is greater than 52,000.
Circle the best answer.
1. (2 points) The sampling distribution of the sample mean states that the mean of the sampling distribution of
,
and standard deviation,
for an infinite
2. (2 points) The method of random sampling where each possible sample of size n has same probability of being selected is called
A standard normal distribution has skewness of measure 1.
| Writer | Writer Name | Amount | Client Comments & Rating |
|---|---|---|---|
ONLINE |
Instant Homework Helper |
$36 |
She helped me in last minute in a very reasonable price. She is a lifesaver, I got A+ grade in my homework, I will surely hire her again for my next assignments, Thumbs Up! |
Custom Original Solution And Get A+ Grades
Custom Original Solution And Get A+ Grades
Custom Original Solution And Get A+ Grades
| Writer | Writer Name | Offer | Chat |
|---|---|---|---|
ONLINE |
Financial HubHey, I have gone through your job posting and become very much interested in working with you.I can deliver professional content as per your requirements. I am a multi-skilled person with sound proficiency in the English language for being a native writer who worked on several similar projects of content writing and can deliver quality content to tight deadlines. I am available for both online and offline writing jobs with the promise of offering an incredibly responsive and supreme level of customer service. Thanks! |
$95 | Chat With Writer |
ONLINE |
Instant AssignmentsGood day dear client, I am a full-time freelance writer with years of experience. My strongest strengths are strong dedication to duty, reliability, quality and excellence. I am going to do an outstanding job for you, kindly PM me and let us commence. Thank you so much in anticipation of your positive response. Thank you very much. |
$95 | Chat With Writer |
Let our expert academic writers to help you in achieving a+ grades in your homework, assignment, quiz or exam.