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 SusanAthena Your Own Question

SusanAthena,
Master's Degree

Category: Math Homework

Satisfied Customers: 4324

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

12809769

Type Your Math Homework Question Here...

SusanAthena is online now

I would like to request Susan Athena to answer these questions...
1.

Resolved Question:

I would like to request Susan Athena to answer these questions...

1. A firm will promote two employees out of a group of six men and three women. Which concept of probability would you use to estimate the probability of each promotion?

Probability of each Promotion

Empirical

Classical

2. The chair of the board of directors says, "There is a 50 percent chance this company will earn a profit, a 30 percent chance it will break even, and a 20 percent chance it will lose money next quarter."

(a) Use an addition rule to find the probability the company will not lose money next quarter.(Round your answer to 2 decimal places.)

3. A student is taking two courses, history and math. The probability the student will pass the history course is 0.60, and the probability of passing the math course is 0.70. The probability of passing both is 0.50.

What is the probability of passing at least one? (Round your answer to 2 decimal places.)

Probability=

4. All Seasons Plumbing has two service trucks that frequently need repair. If the probability the first truck is available is .75, the probability the second truck is available is .50, and the probability that both trucks are available is .30

What is the probability neither truck is available? (Round your answer to 2 decimal places.)

Probability=

5. An investor owns three common stocks. Each stock, independent of the others, has equally likely chances of (1) increasing in value, (2) decreasing in value, or (3) remaining the same value.

Estimate the probability at least two of the stocks increase in value. (Round your answer to 3 decimal places.)

Probability=

6.

Assume the likelihood that any flight on Northwest Airlines arrives within 15 minutes of the scheduled time is .90. We select four flights from yesterday for study.

(a) What is the likelihood all four of the selected flights arrived within 15 minutes of the scheduled time? (Round your answer to 4 decimal places.)

Probability=

(b) What is the likelihood that none of the selected flights arrived within 15 minutes of the scheduled time? (Round your answer to 4 decimal places.)

Probability=

(c) What is the likelihood at least one of the selected flights did not arrive within 15 minutes of the scheduled time? (Round your answer to 4 decimal places.)

2. A recent survey reported in BusinessWeek dealt with the salaries of CEOs at large corporations and whether company shareholders made money or lost money.

CEO Paid More Than $1 Million

CEO Paid Less Than $1 Million

Total

Shareholders made money

2

11

13

Shareholders lost money

4

3

7

Total

6

14

20

If a company is randomly selected from the list of 20 studied, calculate the probabilities for the following :

The CEO made more than $1 million. (Round your answer to 2 decimal places.)

Probability

(b)

The CEO made more than $1 million or the shareholders lost money. (Round your answer to 2 decimal places.)

Probability

(c)

The CEO made more than $1 million given the shareholders lost money. (Round your answer to 2 decimal places.)

Probability

(d)

Select 2 CEOs and find that they both made more than $1 million. (Round your answer to 2 decimal places.)

Probability

3. An investor purchased 100 shares of Fifth Third Bank stock and 100 shares of Santee Electric Cooperative stock. The probability the bank stock will appreciate over a year is .70. The probability the electric utility will increase over the same period is .60.

(a)

What is the probability both stocks appreciate during the period? (Round your answer to 2 decimal places.)

Probability

(b)

What is the probability the bank stock appreciates but the utility does not? (Round your answer to 2 decimal places.)

Probability

(c)

What is the probability at least one of the stocks appreciates? (Round your answer to 2 decimal places.)

Probability

4. For the daily lottery game in Illinois, participants select three numbers between 0 and 9. A number cannot be selected more than once, so a winning ticket could be, say, 307 but not 337. Purchasing one ticket allows you to select one set of numbers. The winning numbers are announced on TV each night.

(a)

How many different outcomes (three-digit numbers) are possible?

Probability

(b)

If you purchase a ticket for the game tonight, what is the likelihood you will win? (Round your answer to 4 decimal places.)

Probability

(c)

Suppose you purchase three tickets for tonights drawing and select a different number for each ticket. What is the probability that you will not win with any of the tickets? (Round your answer to 4 decimal places.)

Probability

Explain a unique-real situation where probabilities exist. Point out all of the outcomes, and the probabilities associated with each outcome. ( someone else has the same example that you provided me before with this question

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