a) 0.77b) -0.23c) 0.67d) *0.67Find the indicated probability.12.An airline knows from experience that the distribution of the number of suitcases that get lost eachweek on a certain route is approximately normal with p= 15.5 and oơ = 3.6. What is the probability thatduring a given week the airline will lose less than 20 suitcases?a) 0.3944b) 0.1056c) 0.8944d) 0.4040

From the provided information, the distribution is approximately normal with mean 15.5 and standard…

Answered: a) 0.77 b) -0.23 c) 0.67 d) *0.67 Find…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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a.) The probability that the sample mean weight of this sample of 20 is greater than 9.75 is _____? b.) The probability that the sample mean weight of this sample of 20 is between 9.75 and 9.89 is ____? c.) There is only a 5% chance that the average weight of a sample of these 20 cheese wedges will be below _____ (answer the blanks)
15 400 people were questioned as to whether they read novels in paperback form or on an e-reader. 20% said they do both. 30% said they read paperbacks. The probability that a person who didn't read paperbacks also didn't read on an e-reader was 25% a) Represent this information in the two-way table below Total Total b) Calculate the probability that a randomly selected person reads novels on an e-reader but not in paperback. c) Of those that read on e-readers, what percentage read in both formats? Give your answer correct to the nearest percent.
Giving a test to a group of students, the grades and gender are summarized below A CTotal B. Male 8. 9. Female 13. 6. 21 Total 28 4. 26. If one student is chosen at random, Find the probability that the student did NOT get an "B" Question Help: DVideo Submit Question Type here to search 2) a. EGO olo tab shift
9.) The mean starting salary for teachers is $53,475 nationally. The standard deviation is approximately $5,250. Assume that the starting salary is normally distributed. a.) State the random variable. b.) Find the probability that a starting teacher will make more than $60,000. c.) Find the probability that a starting teacher will make less than $50,000. d.) Find the probability that a starting teacher will make between $52,000 and $59,500. e.) If a teacher made more than $61,000, would you think the teacher was overpaid? Why or why not?
13. In a certain population, heights (in inches) are normally distributed with a = 67 and a = 3. Find the probability that a person selected at random has a height between 63 and 71 inches. Refer to Appendix A of the textboun. -
10.2.% of the population is 65 or older . Find the probability that the following number of persons selected at random from 50 people are 65or older . The probability that at most 2 are 65 or older is ?
A YouTube user watches on average 27 videos per day. 1.How many videos do a YouTube user watch per hour? 2.How many videos do a YouTube user watch per 8 hours? 3.What is the probability that a YouTube user watches 4 videos per 8 hours? 4.What is the probability that a YouTube user watches more than 2 videos per 8 hours?
All students in a high school were surveyed about two sports. The results are shown in the graph. Frequency 600 400 200 0 190 Sports Survey 565 Basketball 340 Football Like Basketball or Football Both 100 Neither a) How many students were surveyed? b) What is the probability that a student (chosen at random) likes only basketball? Express your answer as a decimal, rounded to 2 decimal places. c) What is the probability that a student (chosen at random) likes both basketball and football? Express your answer as a percentage. d) What is the probability that a student (chosen at random) likes neither basketball nor football? Express your answer as a fraction in lowest terms.
Which of the following is a continuous random variable? A)The number of students arrives to the library checkout desk before noon time. B)The number of students waiting in the cafeteria lane for lunch. C)The travel time of a bus between two cities. D)The number of newspapers sold on a specific date. E)The number phone calls received by call center for a certain period of time.
Four coins are tossed, and the number of heads is recorded. Shade the region on the histogram that gives the indicated probability. P(x > 2) Which of the following shaded regions gives the indicated probability? (Type A, B, C, or D.) A) 0.5- 0.38- 0.25- 0.13- 0- 0.5- 0.38 0.25- 0.13- लट 0 1 2 3 4 01 2 3 4 B) D) 0.5- 0.38- 0.25- 0.13- 0- 0.5- 0.38 0.25 0.13- 0- 0 1 2 3 4 0 1 2 3 4
Answer A-C
14.9. Suppose that a stock price S follows geometric Brownian motion with expected return µ and volatility o: ds = µS dt + oS dz What is the process followed by the variable S"? Show that S“ also follows geometric Brownian motion.

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