Calculus and Above

Calculus Questions? Ask a Mathematician for Answers ASAP

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

statisticsA Z score of 2.0...

statisticsA Z score of 2.0 came from a distribution with a mean of 80 and a standard deviation of 10. What is the raw score?

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

Related Calculus and Above Questions

Stats 3400c A person's raw score is 7, the mean is 13, and

stats 3400c A person's raw score is 7, the mean is 13, and the standard deviation is 3. What is the person's Z score?… read more

Question 2 out of 9. Assume you know the standard deviation

Question 2 out of 9. Assume you know the standard deviation of test scores is 10 and that the distribution is normal. You sample 16 scores and find that the sample mean is 25. Find the p value for a t… read more

I need help with this question. At one university, the

At one university, the students are given z-scores at the end of each semester, rather than the traditional GPAs. The mean and standard deviation of all students' cumulative GPAs, on which the z-scores are based, are 2.82.8 and 0.50.5, respectively. Complete parts a through c. … read more

Score -3.0 -2.8 -2.6 -2.4 -2.2 -2.0 -1.8 -1.6 -1.4

score -3.0 -2.8 -2.6 -2.4 -2.2 -2.0 -1.8 -1.6 -1.4 -1.2 Percentile 0.13 0.26 0.47 0.82 1.39 2.28 3.59 5.48 8.08 11.51z-score -1.0 -0.8 -0.6 -0.4 -0.2 0.2 0.4 0.6 0.8 1 Percentile 15.… read more

ATTENTION RYAN:STASTIC HOMEWORK1. The amount of Jen's

Attachment: 2015-05-12_195353_exam_4_stastic.docx ATTENTION RYAN: STASTIC HOMEWORK 1. The amount of Jen's monthly electric bill is normally distributed with a mean of $160 and a standard deviation of … read more

Question 1 of 20 5.0 Points The lifetimes of light bulbs of

Question 1 of 20 5.0 Points The lifetimes of light bulbs of a particular type are normally distributed with a mean of 270 hours and a standard deviation of 11 hours. What percentage of the bulbs has l… read more

I am working on a statistics worksheet and struggling with understanding how some of it is

I am working on a statistics worksheet and struggling with understanding how some of it is done. This is the worksheet. 12. For the following scores, find the mean, median, sum of squared deviations, … read more

1. Assume the fill amount of bottles of a soft drink is normally

1. Assume the fill amount of bottles of a soft drink is normally distributed with a mean of 2.0 liters and standard deviation of 0.04 liter. If we take random samples of 14 bottles, what is the standa… read more

Hi, I need help in statistics in a psychology class.

Hi, I need help in statistics in a psychology class. I have to do step 4 and 5 of the 5 step hypothesis process. It involves math. I have to do calculations with a research with dogs and human health.… read more

Determine whether the given value is a statistic or a parameter.

Determine whether the given value is a statistic or a parameter. After taking the first exam, 15 of the students dropped the class. (Points : 6) Parameter Statistic 2. Identify the number as either co… read more

For a particular sample of 80 scores on a psychology exam,

For a particular sample of 80 scores on a psychology exam, the following results were obtained. First quartile = 65 Third quartile = 98 Standard deviation = 8 Range = 56 Mean = 83 Median = 81 Mode = 5… read more

Problems I am stuck on my homework with: 1.With regards to

Problems I am stuck on my homework with: 1.With regards XXXXX XXXXX standard normal distribution complete the following: (a) Find P(z > 0), the percentage of the standard normal distribution above … read more

A photographer is going to take a shot of a group of 6 persons.

A photographer is going to take a shot of a group of 6 persons. In how many ways can he arrange them in one row?… read more

1) the time to complete a statistics exam is approximately

1) the time to complete a statistics exam is approximately normal distributed with a mean of 105 minutes. 47.5% of the students completed their exam in between 105 and 115 minutes. what is the approxi… read more

A researcher predicts that listening to music while solving

A researcher predicts that listening to music while solving math problems will make a particular brain area more active. To test this, a research participant has her brain scanned while listening to m… read more

1. Suppose we have a set of blood pressures with a mean of

1. Suppose we have a set of blood pressures with a mean of 80 Diastolic, and a sample standard deviation of 10 points. Assuming a normal distribution of Diastolic blood pressures, between what two val… read more

Two normal distributions are compared. One has a mean of 10

Two normal distributions are compared. One has a mean of 10 and a standard deviaion of 10. The second normal distribution has a mean of 10 and a standard deviation of 2. Which of the following is true… read more

The lifetimes of Unicell 9V batteries are approximately normally

The lifetimes of Unicell 9V batteries are approximately normally distributed with mean 112.61 and standard deviation 23.46 hours of operation. If ONE of the Unicell 9V batteries is randomly chosen, wh… 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 >

Mr. Gregory White

Master's Degree

114 satisfied customers

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

SusanAthena

Master's Degree

102 satisfied customers

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

Dr Arthur Rubin

Doctoral Degree

66 satisfied customers

Ph.D. in Mathematics, 1978, from the California Institute of Technology, over 20 published papers

JACUSTOMER-yrynbdjl-

Master's Degree

42 satisfied customers

I have a MS in Mathematics and I have taught Mathematics for 10 years at the college level.

dhouse1940

Master's Degree

33 satisfied customers

BS mathematics, MS biostatistics, 35+ yrs designing & analyzing biological experiments.

Don

Master's Degree

29 satisfied customers

M.S. Astronautical Engineering. Math/Sci/Comp Tutor

mhasan420

Master's Degree

15 satisfied customers

BA Maths, Oxford

< 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.