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 Sandhya_sharma Your Own Question

Sandhya_sharma, Master's Degree

Category: Calculus and Above

Satisfied Customers: 3681

Experience: I hold M.Sc and M.Phil degrees in math and have several years of teaching experience.

14910578

Type Your Calculus and Above Question Here...

Sandhya_sharma is online now

1. Find the mean for the given sample data. Unless indicated

Customer Question

1. Find the mean for the given sample data. Unless indicated otherwise, round your answer to one more decimal place than is present in the original data values. The students in Hugh Logan's math class took the Scholastic Aptitude Test. Their math scores are shown below. Find the mean score. 536 608 344 340 596 357 343 566 470 482 (Points : 4) 464.2 476.0 473.7 455.1

2. Find the midrange for the given sample data. Listed below are the amounts of time (in months) that the employees of an electronics company have been working at the company. Find the midrange. 12 21 26 37 46 53 61 66 75 76 85 91 132 155 (Points : 4) 63.5 months 71.5 months 66.9 months 83.5 months

3. Find the standard deviation for the given sample data. Round your answer to one more decimal place than is present in the original data. 20.0 21.5 27.4 47.3 13.1 11.1 (Points : 4) 4145.12 37.34 13.11 3285.46

4. Find the indicated probability. A bag contains 5 red marbles, 3 blue marbles, and 1 green marble. Find P(not blue). (Points : 4) 1/3 3/2 6 2/3

5. Find the indicated probability. Round to the nearest thousandth. In a blood testing procedure, blood samples from 6 people are combined into one mixture. The mixture will only test negative if all the individual samples are negative. If the probability that an individual sample tests positive is 0.11, what is the probability that the mixture will test positive? (Points : 4) 0.00000177 1.000 0.503 0.497

7. Provide an appropriate response. Suppose you pay $3.00 to roll a fair die with the understanding that you will get back $5.00 for rolling a 1 or a 6, nothing otherwise. What is your expected value? (Points : 4) -$3.00 $3.00 -$1.33 $5.00

8. Assume that a researcher randomly selects 14 newborn babies and counts the number of girls selected, x. The probabilities corresponding to the 14 possible values of x are summarized in the given table. Answer the question using the table.

Find the probability of selecting 2 or more girls. (Points : 4) 0.999 0.006 0.001 0.994

9. Determine whether the given procedure results in a binomial distribution. If not, state the reason why. Choosing 10 marbles from a box of 40 marbles (20 purple, 12 red, and 8 green) one at a time with replacement, keeping track of the number of red marbles chosen. (Points : 4) Not binomial: there are more than two outcomes for each trial. Procedure results in a binomial distribution. Not binomial: the trials are not independent. Not binomial: there are too many trials.

10. Assume that a procedure yields a binomial distribution with a trial repeated n times. Use the binomial probability formula to find the probability of x successes given the probability p of success on a single trial. Round to three decimal places. n = 4, x = 3, p = 1/6 (Points : 4) 0.015 0.023 0.012 0.004

11. Use the Poisson model to approximate the probability. Round your answer to four decimal places. The probability that a call received by a certain switchboard will be a wrong number is XXXXX Use the Poisson distribution to approximate the probability that among 140 calls received by the switchboard, there are no wrong numbers. (Points : 4) 0.0608 0.1703 0.9392 0.8297 0.0669

12. Given the linear correlation coefficient r and the sample size n, determine the critical values of r and use your finding to state whether or not the given r represents a significant linear correlation. Use a significance level of 0.05. r = 0.843, n = 5 (Points : 4) Critical values: r = ±0.878, significant linear correlation Critical values: r = ±0.950, no significant linear correlation Critical values: r = 0.950, significant linear correlation Critical values: r = ±0.878, no significant linear correlation

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.

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.

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

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!!!!AlexLos 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.GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.JustinKernersville, 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. EstherWoodstock, 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. RobinElkton, 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.DianeDallas, TX

Meet The Experts:

SusanAthena

Master's Degree

Satisfied Customers:

102

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