Cashback Offer from 20th to 25th June 2021. Get Flat 20% Cashback credited to your account for a minimum transaction of $80. Post Your Question Today!

Question DetailsNormal
$ 15.00

STAT 230 2nd Quiz

Question posted by
Online Tutor Profile

1. The National Center for Health Statistics reported that of every 883 deaths in recent years, 24 resulted from an automobile accident, 182 from cancer and 333 from heart disease. What is the probability that a particular death is due to an automobile accident? A. 24/883 or 0.027 B. 539/883 or 0.610 C. 24/333 or 0.072 D. 182/883 or 0.206


2. What does the complement rule state? A. B. C. D.


3. A firm offers routine physical examinations as part of a health service program for its employees. The exams showed that 8% of the employees needed corrective shoes, 15% needed major dental work and 3% needed both corrective shoes and major dental work. What is the probability that an employee selected at random will need either corrective shoes or major dental work? A. 0.20 B. 0.25 C. 0.50 D. 1.00


4. The first card selected from a standard 52-card deck was a king. If it is returned to the deck, what is the probability that a king will be drawn on the second selection? A. 1/4 or 0.25 B. 1/13 or 0.077 C. 12/13 or 0.923 D. 1/3 or 0.33


5. What does equal? A. 640 B. 36 C. 10 D. 120


6. How many permutations of the two letters C and D are possible? A. 1 B. 0 C. 2 D. 8


7. A builder has agreed NOT to build all "look alike" homes in a new subdivision. The builder has 3 different interior plans that can be combined with any of the 5 different home exteriors. How many different homes can be built? A. 8 B. 10 C. 15 D. 30


8. A lamp manufacturer has developed 5 lamp bases and 4 lampshades that could be used together. How many different arrangements of base and shade can be offered? A. 5 B. 10 C. 15 D. 20


9. If the variance is 3.6 grams, what is the standard deviation? A. 0.6 B. 1.897 C. 6.0 D. 12.96


10. Which of the following is correct about a probability distribution? A. Sum of all possible outcomes must equal 1 B. Outcomes must be mutually exclusive C. Probability of each outcome must be between 0 and 1 inclusive D. All of the above


11. A study of 200 computer service firms revealed these incomes after taxes: What is the probability that a particular firm selected has $1 million or more in income after taxes? A. 0.00 B. 0.25 C. 0.49 D. 0.51


12. For the following probability distribution, the mean is A. 12 B. 0.2 C. 0 D. 10


13. The probabilities and the number of automobiles lined up at a Lakeside Olds at opening time (7:30 a.m.) for service are On a typical day, how many automobiles should Lakeside Olds expect to be lined up at opening? Hint. A. 10.00 B. 1.00 C. 2.85 D. 1.96


14. The following is a binomial probability distribution with n = 3 and π = 0.20. The variance of the distribution is (Hint ) A. 1.5 B. 3.0 C. 0.69 D. 0.48


15. There are 8 flights from Minneapolis to St. Cloud each day. The probability that any one flight is late is 0.10. Using the binomial probability formula, what is the probability that exactly 1 flight is late? Hint: . A. 0.048 B. 0.383 C. 0.00000072 D. 0.627


16. Which one of the following is NOT a condition of the binomial distribution? A. Independent trials B. Only two outcomes C. Probability of success remains constant from trial to trial D. At least 10 observations


17. Chances are 50-50 that a newborn baby will be a girl. For families with five children, what is the probability that all the children are girls? A. 0.900 B. 0.031 C. 0.001 D. 0.250


18. The standard normal distribution is a special normal distribution with a mean of 0 and a standard deviation of 1. True False


19. The mean of a normal probability distribution is 500 and the standard deviation is 10. About 95 percent of the observations lie between what two values? (Hint: Use the Empirical Rule) A. 475 and 525 B. 480 and 520 C. 400 and 600 D. 350 and 650


20. For the normal distribution, the mean plus and minus 1.96 standard deviations will include about what percent of the observations? A. 50% B. 99.7% C. 95% D. 68%


21. The weight of cans of fruit is normally distributed with a mean of 1,000 grams and a standard deviation of 50 grams. What percent of the cans weigh 860 grams or less? A. 0.0100 B. 0.8400 C. 0.0026 D. 0.0001


22. Truck tire life is normally distributed with a mean of 60,000 miles and a standard deviation of 4,000 miles. What is the probability that a tire lasts between 54,000 and 66,000 miles? A. 0.4332 B. 0.8664 C. 1.00 D. Very likely


23. Truck tire life is normally distributed with a mean of 60,000 miles and a standard deviation of 4,000 miles. You bought four tires. What is the probability that the average mileage of the four tires exceeds 66,000 miles? A. 0.0013 B. 0.9987 C. 0.4987 D. 0.9544


24. Construct the confidence interval estimate of the population proportion if the sample length the sample proportion 99% level of confidence. A. (0.176, 0.224) B. (0.171, 0.229) C. (0.162, 0.238) D. (0.157, 0.243)


25. A sample of 35 skulls is obtained for Egyptian males who lived around 1850 B.C. The maximum breadth of each skulls is measured with the result that the mean value of the sample mm and the standard deviation of the sample mm. Using these sample results and a confidence level of 95% find the confidence interval for the mean value of the maximum breadth of ancient Egyptian males. A. (133.3, 135.7) B. (132.9, 136.1) C. (133.0, 136.0) D. (132.6, 136.4)

Available Answer
$ 15.00

[Solved] STAT 230 2nd Quiz

  • This solution is not purchased yet.
  • Submitted On 06 Aug, 2015 10:59:37
Answer posted by
Online Tutor Profile
This is a Word document that has the veri...
Buy now to view the complete solution
Other Similar Questions
User Profile

STAT 230 Final Examination Summer 2015 OL1/US1 | Complete Solution

Answers: (a) True (b)False, enough information is not given to find P(A and B) (c) True (d) False (e) True Work for (a), (b), (c), (d) and (e): (a) Difference between mean and the point will be zero and hence the variance...
User Profile

STAT 230 OL4 / US2 Sections Final Exam Spring 2015 | Complete Solution

10.It is impossible to tell using only the given information. 11.It is impossible to tell using only the given information. 12.Probability that a randomly selected junior is taking at least one of these two courses = number ...
User Profile

STAT 230 Quiz Help Requested

Here, • There are fixed number of independent trials (number of women) • There are two outcomes of every events (abused or not) • The probability of success (not abused) is fixed in trial to trial So all con...

User Profile

STAT 230 Quiz Help Requested

Please find answers in the file attached. There is one item that has no question.It is item number 9. You may message me for clarifications.Please notify me if you got the question and i will append the tutorial. Thanks....
User Profile

STAT 230 OL1 Sections Final Exam | Complete Solution All Work Shown

Answer: Both Work:Both of the cities has median as 85. As median is the middle most value so half of the values for both the cities are more than 85 indicating that they have equal percentage of households with values $85,...

The benefits of buying study notes from CourseMerit

Assurance Of Timely Delivery
We value your patience, and to ensure you always receive your homework help within the promised time, our dedicated team of tutors begins their work as soon as the request arrives.
Best Price In The Market
All the services that are available on our page cost only a nominal amount of money. In fact, the prices are lower than the industry standards. You can always expect value for money from us.
Uninterrupted 24/7 Support
Our customer support wing remains online 24x7 to provide you seamless assistance. Also, when you post a query or a request here, you can expect an immediate response from our side.

$ 629.35