Math Homework

Ask Math Questions. Get Help With Your Math Homework

Connect one-on-one with {0} who will answer your question

Customer Question

PLEASE SHOW ALL WORk 2.Determine whether...

PLEASE SHOW ALL WORk

2.Determine whether each of the distributions given below represents a probability distribution. Justify your answer.

a)

x 1 2 3 4

P(x) 1/4 5/12 1/3 1/6

b)

x 3 6 8

P(x) 0.1 3/5 0.3

c)

x 20 30 40 50

P(x) 0.2 -0.2 0.7 0.3

3.Four cards are selected, one at a time from a standard deck of 52 cards. Let x represent the number of aces drawn in a set of 4 cards.

a.If this is completed without replacement, explain why x is not a binomial random variable.

b.If this is completed with replacement, explain why x is a binomial random variable.

4.How does the bell-shaped curve for the sampling distribution of sample means for samples of size n = 120 compare to the bell-shaped curve for the sampling distribution of sample means for samples of size n = 95?

8.Consider a binomial distribution with 14 identical trials, and a probability of success of 0.4

i.Find the probability that x = 3 use the binomial tables

ii.Use normal approximation to find the probability that x=3

2.Determine whether each of the distributions given below represents a probability distribution. Justify your answer.

a)

x 1 2 3 4

P(x) 1/4 5/12 1/3 1/6

b)

x 3 6 8

P(x) 0.1 3/5 0.3

c)

x 20 30 40 50

P(x) 0.2 -0.2 0.7 0.3

3.Four cards are selected, one at a time from a standard deck of 52 cards. Let x represent the number of aces drawn in a set of 4 cards.

a.If this is completed without replacement, explain why x is not a binomial random variable.

b.If this is completed with replacement, explain why x is a binomial random variable.

4.How does the bell-shaped curve for the sampling distribution of sample means for samples of size n = 120 compare to the bell-shaped curve for the sampling distribution of sample means for samples of size n = 95?

8.Consider a binomial distribution with 14 identical trials, and a probability of success of 0.4

i.Find the probability that x = 3 use the binomial tables

ii.Use normal approximation to find the probability that x=3

Show More

Show Less

Was this answer helpful?

Describe your issueThe assistant will guide you

Chat 1:1 with a math tutor or teacherLicensed Experts are available 24/7

100% satisfaction guaranteeGet all the answers you need

Related Math Homework Questions

1. Question Provide an appropriate response. If selecting

1. Question: Provide an appropriate response. If selecting samples of size n > 30 from a population with a known mean and standard deviation, what requirement, if any, must be satisfied in order to… read more

1. Determine whether each of the distributions given below

1. Determine whether each of the distributions given below represents a probability distribution. Justify your answer. A. X 1 2 3 4 P(x) 3/10 1/5 1/5 3/10 B. X 3 6 8 P(x) 0.2 3/5 3/10 C. X 20 30 40 50… read more

2. Suppose we want to determine the (binomial) probability(p)

2. Suppose we want to determine the (binomial) probability(p) of getting 6 heads in 15 flips of a 2-sided coin. Using the Binomial Probabilities Table in Appendix B of the text, what values of n, x an… read more

1.Determine whether each of the distributions given below represents

1.Determine whether each of the distributions given below represents a probability distribution. Please justify your answer (A) x 1 2 3 4 P(x) 1/4 1/12 1/3 1/6 (B) x 3 6 8 P(x) 0.2 2/5 0.3 (C) x 20 30… read more

Determine whether each of the distributions given below represents

Determine whether each of the distributions given below represents a probability distribution. Please explain answer. (A) x 1 2 3 4 P(x) 0.25 5/12 1/3 1/6 (B) x 3 6 8 P(x) 0.1 3/5 0.3 (C) x 20 30 40 5… read more

How many ways can an EMT union committee of 5 be chosen from

How many ways can an EMT union committee of 5 be chosen from 25 EMTs? Which of the following cannot be a probability? 0 -49 0.001 14% List the sample space for dealing only clubs from a deck of cards … read more

1.Decide whether the experiment is a binomial, Poisson, or

1.Decide whether the experiment is a binomial, Poisson, or neither based on the information given. You observe the gender of the next 950 babies born at a local hospital. The random variable represent… read more

Greg, 1. How does the bell-shaped curve for the sampling

Greg, 1. How does the bell-shaped curve for the sampling distribution of sample means for samples of size n = 100 compare to the bell-shaped curve for the sampling distribution of sample means for sam… read more

1.Explain the difference between a discrete and a continuous

1.Explain the difference between a discrete and a continuous random variable. Give two examples of each type of random variable. (6 pts) 2.Determine whether each of the distributions given below repre… read more

statistics 1. Explain the difference between a discrete and

statistics 1. Explain the difference between a discrete and a continuous random variable. Give two examples of each type of random variable. (6 pts) 2. Determine whether each of the distributions give… read more

2. Determine whether each of the distributions given below

2. Determine whether each of the distributions given below represents a probability distribution. Justify your answer. (6 pts) a) x 1 2 3 4 P(x) 1/4 5/12 1/3 1/6 b) x 3 6 8 P(x) 0.1 3/5 0.3 c) x 20 30… read more

2.Determine whether each of the distributions given below represents

2.Determine whether each of the distributions given below represents a probability distribution. Justify your answer. (6 pts) a) x 1 2 3 4 P(x) 1/4 5/12 1/3 1/6 b) x 3 6 8 P(x) 0.1 3/5 0.3 c) x 20 30 … read more

1. Determine whether each of the distributions given below

1. Determine whether each of the distributions given below represents a probability distribution. Justify your answer. (6 pts) a) x 1 2 3 4 P(x) 1/4 5/12 1/3 1/6 b) x 3 6 8 P(x) 0.1 3/5 0.3 c) x 20 30… read more

Question for Greg Michaelson 1. Under certain conditions, it

Question for Greg Michaelson 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 form… read more

1.Explain the difference between a discrete and a continuous

1.Explain the difference between a discrete and a continuous random variable. Give two examples of each type of random variable. 2.Determine whether each of the distributions given below represents a … read more

4.How does the bell-shaped curve for the sampling distribution

4.How does the bell-shaped curve for the sampling distribution of sample means for samples of size n = 100 compare to the bell-shaped curve for the sampling distribution of sample means for samples of… read more

3. For a particular sample of 50 scores on a psychology exam,

3. For a particular sample of 50 scores on a psychology exam, the following results were obtained. Mean = 78 Midrange = 72 Third quartile = 94 Mode = 84 Median = 80 Standard deviation = 11 Range = 52 … read more

1. Explain the difference between a discrete and a continuous

1. Explain the difference between a discrete and a continuous random variable. Give two examples of each type of random variable. 2. Determine whether each of the distributions given below represents … 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.

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 >

rajeevanpillai

Master's Degree

1,048 satisfied customers

M.Sc Statistics MPhil Statistics

Manal Elkhoshkhany

Bachelor's Degree

239 satisfied customers

I have completed my BA degree in 1988, and graduated with a GPA of 4.0.

Jabi

Tutor

155 satisfied customers

I've been an Expert on JustAnswer since July 2010

Mr. Gregory White

Master's Degree

113 satisfied customers

M.A., M.S. Education / Educational Administration

Dr Arthur Rubin

Doctoral Degree

76 satisfied customers

Ph.D. in Mathematics, California Institute of Technology

JACUSTOMER-yrynbdjl-

Master's Degree

49 satisfied customers

I have taught college Mathematics for the past 10 years.

SusanAthena

Master's Degree

41 satisfied customers

Tutor for Algebra, Geometry, Statistics. Explaining math in plain English.

< Previous | Next >

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.