Homework

Homework Questions? Ask a Tutor for Answers ASAP

Ask an Expert,

Get an Answer ASAP!

Customer Question

Determine whether each of the...

Determine whether each of the distributions given below represents a probability distribution. Justify your answer. (A) x1234 P(x)1/125/121/31/12 (B) x368 P(x) 2/10.51/5 (C) x20354050 P(x)0.4-0.20.50.3 2.Consider a binomial distribution with 15 identical trials, and a probability of success of 0.5 i. Find the probability that x = 3 using the binomial tables ii. Use the normal approximation to find the probability that x = 3. Show all work. 3. The diameters of oranges in a certain orchard are normally distributed with a mean of 6.85 inches and a standard deviation of 0.80 inches. Show all work. (A) What percentage of the oranges in this orchard have diameters less than 6.3 inches? (B) What percentage of the oranges in this orchard are larger than 6.75 inches? (C) A random sample of 100 oranges is gathered and the mean diameter obtained was 6.75. If another sample of 100 is taken, what is the probability that its sample mean will be greater than 6.75 inches? (D) Why is the z-score used in answering (A), (B), and (C)? (E) Why is the formula for z used in (C) different from that used in (A) and (B)? 4. Assume that the population of heights of female college students is approximately normally distributed with mean m of 69 inches and standard deviation s of 6.75 inches. A random sample of 16 heights is obtained. Show all work. (A) Find the proportion of female college students whose height is greater than 66 inches. (B) Find the mean and standard error of the distribution (C) Find P(-/x >66) 5.Answer the following questions regarding the normal, standard normal and binomial distributions. (A) Why can the normal distribution be used as an approximation to the binomial distribution? (B) What conditions must be met in order to use the normal distribution to approximate the binomial distribution? (C) Why is the correction for continuity necessary when the normal distribution is used to approximate a binomial distribution? 6. . Four jelly beans are selected, one at a time from a bowl containing 6 black, 6 red and 6 green jelly beans. Let x represent the number of black jelly beans selected in 4 draws from the bowl. (A) If this experiment is completed without replacing the jelly beans, explain why x is not a binomial random variable. (B) If this experiment is completed with replacement of the jelly beans, explain why x is a binomial random variable. 1. Find the following probabilities: (A) Events A and B are mutually exclusive events defined on a common sample space. If P (A) = 0.3 and P(A or B) = 0.70, find P(B). (B) Events A and B are defined on a common sample space. If P(A) = 0.40, P(B) = 0.50, and P(A or B) = 0.50, find P(A and B) 2. A small bag of Skittles candies has the following assortment: red (12), blue (5), orange (15), brown (0), green (16), and yellow (7). Construct the probability distribution for x. 3. Find the mean and standard deviation of the following probability distribution: x123 P(x)0.40.250.35 4. Classify the following as discrete or continuous random variables. (A) The time it takes to run a marathon (B) The number of fractions between 1 and 2 (C) A pair of dice is rolled, and the sum to appear on the dice is recorded (D) The length of a broad jump 5. In testing a new drug, researchers found that 10% of all patients using it will have a mild side effect. A random sample of 12 patients using the drug is selected. Find the probability that: (A) exactly three will have this mild side effect (B) at least three will have this mild side effect. 6. X has a normal distribution with a mean of 70.0 and a standard deviation of 3.0. Find the following probabilities: (A) P(x < 65.0) (B) P(66.0 < x < 72.0) (C) P(x>73.0) 7. Find the value of z such that 49.5% of the distribution lies between it and the mean. 8. Assume that the average annual salary for a worker in the United States is $36,000 and that the annual salaries for Americans are normally distributed with a standard deviation equal to $7,000. Find the following: (A) What percentage of Americans earn below $26,000? (B) What percentage of Americans earn above $39,000?

Optional Information:

Level/Year: 2nd year college

Subject: stats

Already Tried:

I tried using brainmass but I'm not sure about them.

Optional Information:

Level/Year: 2nd year college

Subject: stats

Already Tried:

I tried using brainmass but I'm not sure about them.

Show More

Show Less

Was this answer helpful?

Describe your issueThe assistant will guide you

Chat 1:1 with a tutorLicensed Experts are available 24/7

100% satisfaction guaranteeGet all the answers you need

A new question is answered every 9 seconds

How JustAnswer works:

- Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
- Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
- 100% Satisfaction GuaranteeRate the answer you receive.

Ask-a-doc 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.

...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 work-from-home 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.

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

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!!!!

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.

Hesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

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.

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.

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.

Dallas, TX

< Previous | Next >

LogicPro

Engineer

5,894 satisfied customers

Expert in Java C++ C C# VB Javascript Design SQL HTML

Manal Elkhoshkhany

Tutor

4,556 satisfied customers

More than 5000 online tutoring sessions.

Linda_us

Finance, Accounts & Homework Tutor

3,138 satisfied customers

Post Graduate Diploma in Management (MBA)

Chris M.

M.S.W. Social Work

2,699 satisfied customers

Master's Degree, strong math and writing skills, experience in one-on-one tutoring (college English)

F. Naz

Chartered Accountant

2,194 satisfied customers

Experience with chartered accountancy

Bizhelp

CPA

1,887 satisfied customers

Bachelors Degree and CPA with Accounting work experience

Seanna

Tutor

1,781 satisfied customers

3,000+ satisfied customers, all topics, A+ work

< Previous | Next >

Related Homework Questions

7. Answer the following (A) Find the binomial probability

7. Answer the following: (A) Find the binomial probability P(x = 4), where n = 12 and p = 0.40. (B) Set up, without solving, the binomial probability P(x is at most 4) using probability notation. (C) … read more

The diameters of oranges in a certain orchard are normally

The diameters of oranges in a certain orchard are normally distributed with a mean of 5.00 inches and a standard deviation of 0.50 inches. Show all work. (A) What percentage of the oranges in this orc… read more

For M Hasan 1. Find the following probabilities (A)

'For M Hasan' 1. Find the following probabilities: (A) Events A and B are mutually exclusive events defined on a common sample space. If P (A) = 0.2 and P(A or B) = 0.60, find P(B). (B) Events A and B… read more

M Hasan 1. Determine whether each of the distributions

M Hasan 1. Determine whether each of the distributions given below represents a probability distribution. Justify your answer. (A) x 1 2 3 4 P(x) 1/12 5/12 1/3 1/12 (B) x 3 6 8 P(x) 2/10 .5 1/5 (C) x … read more

The diameters of oranges in a certain orchard are normally ...

The diameters of oranges in a certain orchard are normally distributed with a mean of 5.26 inches and a standard deviation of 0.50 inches. What percentage of the oranges in this orchard have diameters… read more

. A random sample of 100 oranges is gathered and the mean ...

. A random sample of 100 oranges is gathered and the mean diameter obtained was 5.12. If another sample of 100 is taken, what is the probability that its sample mean will be greater than 5.12 inches?… read more

8. Which of the following is a characteristic of a binomial

8. Which of the following is a characteristic of a binomial probability experiment? A. Each trial has at least two possible outcomes B. P(success) = P(failure) C. The binomial random variable x is the… read more

1. Under certain conditions, it is possible that the sum of

1. Under certain conditions, it is possible that the sum of the probabilities of all the sample points in a sample space is less than one. ___ T/F 2. A compound event formed by use of the word and req… read more

13. A small bag of Skittles candies has the following ...

13. A small bag of Skittles candies has the following assortment: red (10), blue (2), orange (5), brown (21), green (0), and yellow (18). Construct the probability distribution for x. 14. Find the mea… read more

1. Find the following probabilities a. Events A and B ...

1. Find the following probabilities: a. Events A and B are mutually exclusive events defined on a common sample space. If P (A) = 0.4 and P(A or B) = 0.9, find P(B). b. Events A and B are defined on a… read more

1. Under certain conditions, it is possible that the sum of

1. Under certain conditions, it is possible that the sum of the probabilities of all the sample points in a sample space is less than one. ___ T/F 2. A compound event formed by use of the word and req… read more

14. Describe in your own words what is meant by line of ...

14. Describe in your own words what is meant by “line of best fit”. 15. In your own words, state the primary purpose of: a. linear correlation analysis b. regression analysis 16. You are given the fol… read more

1. A health magazine presented results of a recent study

1. A health magazine presented results of a recent study that analyzed data collected by the U.S. Census Bureau in 2000. Results reveal that for both men and women in the United States, heart disease … read more

The diameters of oranges in a certain orchard are normally ...

The diameters of oranges in a certain orchard are normally distributed with a mean of 5.26 inches and a standard deviation of 0.50 inches. a. What percentage of the oranges in this orchard have diamet… read more

9. The diameters of oranges in a certain orchard are

9.The diameters of oranges in a certain orchard are normally distributed with a mean of 5.26 inches and a standard deviation of 0.50 inches. a.What percentage of the oranges in this orchard have diame… read more

1. explain why the normal distribution can be used as an ...

1. explain why the normal distribution can be used as an approximation to the binomial distribution. What conditions must be met to use the normal distribution to approximate the binomial distribution… read more

8. consider a binomial distribution with 15 identical

8. consider a binomial distribution with 15 identical trials, and a probability of success of 0.5 a)find the probability that x=2 using the binomial tables. b)use the normal approximation to find the … read more

1. Your state has just started a new lottery game. The

1. Your state has just started a new lottery game. The probability that a single ticket will be a winner is 0.10. You decide to buy 15 tickets. a. What is the probability that at least two tickets wil… read more

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.