Login

Contact Us
Homework
Homework Questions? Ask a Tutor for Answers ASAP
Not a Homework Question?
How JustAnswer Works:
Ask an Expert
Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
Get a Professional Answer
Via email, text message, or notification as you wait on our site.
Ask follow up questions if you need to.
100% Satisfaction Guarantee
Rate the answer you receive.
Ask R.R. Jha Your Own Question
R.R. Jha
,
Tutor
Category:
Homework
Satisfied Customers:
5471
Experience:
B.Tech
20870358
Type Your Homework Question Here...
R.R. Jha is online now
1. Describe the following variables as quantitative or qualitative,
Resolved Question:
1. Describe the following variables as quantitative or qualitative, and describe the scales of measurement.
A. The distance a student commutes from home to campus.
B. The rating of a stock as "strong buy," "buy," "hold," or "sell."
C. The percentage of alcohol (in volume) in Budweiser Beer.
2. A major airline wanted some information on those enrolled in their "frequent flyer" program. A sample of 10 members resulted in the following number of miles flown, to the nearest 1,000 miles, by each participant.
41, 22, 78, 54, 72, 97, 67, 64, 70, 55
A. Use 6 to 14 classes of equal width to create a table of frequencies for the "frequent flyer" data.
B. Draw a stemandleaf display for the "frequent flyer" data.
C. Find the first, second, and third quartiles of the "frequent flyer."
3. The following data consists of shoe sizes for six students:
9, 6.5, 8, 8.5, 7.5, 8.5
A. Find the mean shoe size for these six students.
B. Find the standard deviation of the shoe sizes.
4. The following table gives the twoway classification of 2,000 randomly selected employees from a city, based on gender and commuting time from home to work.
Commuting Time from Home to Work:
Less Than 30 Minutes 30 Minutes to One Hour More Than One Hour
Men: 524 455 221
Women: 413 263 124
_____________________________________________________
A. If one employee is selected at random from these 2,000 employees, find the probability that this employee
i. commutes for more than one hour.
ii. commutes for at least half an hour.
iii. commutes for at most one hour given that the employee is a woman.
B. (Are the events "man" and "commutes for more than one hour" independent? Explain.
5. The number of defects in a machinemade product is a random variable with the following probability distribution:
X P(x)
0 0.5
1 0.3
2 0.1
3 0.1
A. Find the probability that there are no more than 2 defects in a product.
B. Find the probability that the number of defects in a product is between 1 and 3, inclusive.
C. Find the probability that a randomly selected product has at most 1 defect.
D. Find the expected number of defects in a product.
E. Find the variance of the number of defects in a product.
6. Twenty percent of the patients treated by a new drug for AIDS show signs of improvement within six weeks. A random sample of five patients is selected and treated by the new drug.
A. Is this a binomial experiment?
B. Find the probability that 4 patients in the sample will show signs of improvement within six weeks.
7. The distance that one professional golfer can drive a golf ball has a normal distribution with a mean of 258 yards and a standard deviation of 6 yards.
A. What proportion of his drives exceed 280 yards in length?
B. How many yards should this golfer drive a ball so that the distance is among his longest 25%?
8. The average number of pounds of meat a person consumes a year is 212.3 pounds. Assume that the standard deviation is 20 pounds. If a sample of 50 individuals is selected, find the probability that the mean of the sample will be less than 210 pounds per year.
9. Suppose that a presidential candidate is favored by 51% of all eligible voters. What is the probability that in a random sample of 100 registered voters, less than 49% will favor that candidate?
Submitted:
3 years ago.
Category:
Homework
Share this conversation
Expert:
R.R. Jha
replied 3 years ago.
Hi,
Welcome!
I'm working on your questions. I'd finish them and get back to you as soon as possible.
Thanks
Ask Your Own Homework Question
Customer:
replied 3 years ago.
Thank you!
Expert:
R.R. Jha
replied 3 years ago.
Most welcome!
I hope I'd be done in about half an hour from now.
Ask Your Own Homework Question
Expert:
R.R. Jha
replied 3 years ago.
THIS ANSWER IS LOCKED!
You need to spend $3 to view this post.
Add Funds
to your account and buy credits.
R.R. Jha, Tutor
Category:
Homework
Satisfied Customers:
5471
Experience:
B.Tech
R.R. Jha and 4 other Homework Specialists are ready to help you
Ask your own question now
Share this conversation
JustAnswer in the News:
Askadoc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses workfromhome jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.
What Customers are Saying:
Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.
Mary C.
Freshfield, Liverpool, UK
<
Previous

Next
>
Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.
Mary C.
Freshfield, Liverpool, UK
This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!
Alex
Los Angeles, CA
Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.
GP
Hesperia, CA
I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.
Justin
Kernersville, NC
Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.
Esther
Woodstock, NY
Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.
Robin
Elkton, Maryland
He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.
Diane
Dallas, TX
Meet The Experts:
LogicPro
Engineer
Satisfied Customers:
4925
Expert in Java C++ C C# VB Javascript Design SQL HTML
<
Last

Next
>
http://ww2.justanswer.com/uploads/ComputersGuru/20100213_051118_Photo41.JPG
LogicPro's Avatar
LogicPro
Engineer
Satisfied Customers:
4925
Expert in Java C++ C C# VB Javascript Design SQL HTML
http://ww2.justanswer.com/uploads/BU/BusinessTutor/201222_115741_Kouki2.64x64.jpg
Manal Elkhoshkhany's Avatar
Manal Elkhoshkhany
Tutor
Satisfied Customers:
4538
More than 5000 online tutoring sessions.
http://ww2.justanswer.com/uploads/LI/lindaus/2012610_04811_IMG20120609164157.64x64.jpg
Linda_us's Avatar
Linda_us
Finance, Accounts & Homework Tutor
Satisfied Customers:
3138
Post Graduate Diploma in Management (MBA)
http://ww2.justanswer.com/uploads/chooser77/20090818_162025_Chris.jpg
Chris M.'s Avatar
Chris M.
M.S.W. Social Work
Satisfied Customers:
2602
Master's Degree, strong math and writing skills, experience in oneonone tutoring (college English)
http://ww2.justanswer.com/uploads/JawaadAhmed/2009627_12137_SIs_SHadi.jpg
F. Naz's Avatar
F. Naz
Chartered Accountant
Satisfied Customers:
2126
Experience with chartered accountancy
http://ww2.justanswer.com/uploads/JK/jkcpa/2011116_182614_jkcpa.64x64.jpg
Bizhelp's Avatar
Bizhelp
CPA
Satisfied Customers:
1887
Bachelors Degree and CPA with Accounting work experience
http://ww2.justanswer.com/uploads/avremote/photoa.jpg
Seanna's Avatar
Seanna
Tutor
Satisfied Customers:
1781
3,000+ satisfied customers, all topics, A+ work
Related Homework Questions
Question
Date Submitted
Who is the programmer? JA: We find the Programmer who is
5/24/2016
5/25/2016
LogicPro
1. Factorial numbers In this assignment, you will write a
5/23/2016
5/23/2016
LogicPro
Question 1 of 20 5.0 Points When the market price is higher
5/20/2016
5/20/2016
GLENN
I have three questions below along with two attachments.1.
5/20/2016
5/23/2016
swmcdonnell
Please Help! Question 1 of 20 Alonso argues that the only
5/20/2016
5/20/2016
GLENN
Directions: Provide the correct citation to the following
5/19/2016
5/19/2016
Chris M.
Vicky operates a successful retail computer sales business
5/19/2016
5/19/2016
GLENN
Descriptive statistics, I do not understand these questions
5/18/2016
5/18/2016
GLENN
Describe your experience in a 500 to 800 word essay,
5/18/2016
5/19/2016
GLENN
I have two more essay
5/18/2016
5/20/2016
GLENN
X
Ask a Tutor
Get a Professional Answer. 100% Satisfaction Guaranteed.
30 Tutors are Online Now
Type Your Homework Question Here...
characters left: