1. Dorothy leads wilderness expeditions. She has found that 15% of those who attenda promotional meeting will sign up for an expedition at the meeting. # 20 peopleattend a meeting, what is the probability:a) Less than 8 of them sign upb). More than 12 of them sign upc). Between 6 and 11 of them sign up

Answered: Image /qna-images/answer/fe1a8f05-2aa7-4aa5-b8bc-4f5137653bd1.jpg

Answered: 1. Dorothy leads wilderness…

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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1. A focus group of 4 members is to be randomly selected from a medical team consisting of 8 doctors and 6 technicians and 5 paramedics and 7 nurses. a. What is the probability that no doctors or no paramedics are selected? Let
2. The probability that a person has a negative side effect from a medication is .08.Suppose you treat 12 people. Assume they are independent.a. What is the probability that exactly 2 of them have a negative side effect?
6. Clinical trials have shown that 90% of the patients with severe migraine experience relief of their pain after taking the drug Nimodipine. Suppose 15 migraine patients try Nimodipine. a. What is the probability all of the patients experience relief? b. What is the probability only 10 patients experience relief? What is the probability at least 12 patients experience relief? d. What is the probability at most 10 patients experience relief? e. How many are expected to experience relief?
A random student will be selected from the College of Engineering. The number of male (B) and female (G) students in each department are as follows: For Civil Engineering (C) it is 43 and 15 respectively; for Electronics and Electrical engineering (E), it is 32 and 19 respectively; and for Mechanical Engineering (M), its 23 and 8 respectively. A. What is the probability that the student is male ME student or an EE student? B. What is the probability that the student is female given that she is not an ME student? C. What is the probability that the student is either a female or a CE student? D. What is the probability that the student is a male given that he is a CE student?
4.The mortality rate for a certain disease is 25%. A random sample of twelve patients with this disease is selected. a.What is the probability that exactly half of the patients selected will die from the disease? b.What is the probability that at least two of the twelve patients will die from the disease?
3. An airline tracks data on the flight arrivals. Over the past 6 months, 65 flights on one route around early, 130 arrived on time, 15 were late, and 30 were cancelled. A. What is probability the flight is early? On time? Late? Canceled? B. Are thes outcomes exclusive? C. What id the probability that a flight is either early or on time?
3. The latest data from the CDC indicates that 14% of Americans are smokers. A researcher wants to identify smokers for a survey. He randomly selects people entering a grocery store to ask if they are a smoker. a) What is the probability that he identifies the first smoker on his 5th try? b) What is the probability that he has to approach more than 8 people before finding the first smoker? c) How many people does he expect to approach before finding the first smoker?
4. Final: In a monthly report, the local animal shelter states that it curently has 21 dogs and 27 cats. Fourteen of the dogs and 18 of the cats are female. If an animal is selected at random, find the probability that the pet is a male dog. O a. 4283 O b.1458 O c.5194 O d. .2319 Previous page Jump to. 近

7. 64% of all violent felons in the prison system are repeat offenders. If 40 violent felons are randomly selected, find the probability that a. Exactly 23 of them are repeat offenders. ?b. At most 28 of them are repeat offenders. ?c. At least 27 of them are repeat offenders. ?d. Between 23 and 30 (including 23 and 30) of them are repeat offenders. ?

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