What is the probability of selecting an employee that was in the under 25 age group from a group of employees that....A)approvedB)did not approve Age Groupunder 2525 to 40over 40TotalApprove18243274Disapprove384024102Indifferent26122058Total827676234

Age GroupApproveDisapproveIndifferentTotalunder 251838268225 to 4024401276over…

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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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200 people were classified according to blood pressure status and diabetes status as follows: Diabetes status Blood pressure status Total Low Normal High Diabetic 5 20 35 60 Not diabetic 10 110 20 140 Total 15 130 55 200 What is the probability that a randomly selected person: Is diabetic Is diabetic or have normal blood pressure Has high blood pressure given that he/she is diabetic
In a survey of 205 people, the following data were obtained relating gender to color-blindness: Color-Blind (C) Not Color - Blind C¯¯¯¯C¯ Total Male (M) 71 62 133 Female (F) 20 52 72 Total 91 114 205 A person is randomly selected. What is the probability that the person is:a) Male? b) Male and Color-blind? c) Male given that the person is Color-blind? d) Color-blind given that the person is Male? e) Female given that the person is not Color-blind? f) Are the events Male and Color blind independent? Enter yes or no.
In a manufacturing process, the manufactured units are checked by a computer-controlled sensor and are then classified as either correct or defective. The probability that a defective unit is classified as defective is 0.9 and the probability that a correct unit is classified as defective is 0.15. It is also known that 10% of the units produced are defective. a) What is the probability that a randomly selected device is classified as defective by the sensor? b) What is the probability that a device classified as defective is in fact defective?
The undergraduate admission rate at a certain university for a certain year was 7%. a. Assuming the admission rate is still 77%, in a sample of 100 applicants to the university, what is the probability that exactly 8 will be admitted? Assume that decisions to admit are independent. b. What is the probability that exactly 92 out of 100 applicants will be rejected? a. What is the probability that exactly 8 out of 100 applicants will be admitted?
A survey on the best Asian tourist destinations showed that, out of 70 people, 23 ranked Singapore as first, whereas 15 put Hong Kong in first place, 11 put Shanghai first, 7 put Beijing first, and the rest of them chose Tokyo. On the basis of this data, calculate the following.a. The probability of the preferred destination being a city in China. (In this specific case, Hong Kong is not considered part of China.)b. The probability of the preferred destination not being a Chinese city. (In this case, Hong Kong is considered a Chinese city, even if outside China.)c. The probability of the preferred destination being Tokyo.d. The probability of the preferred destination not being Singapore.
a) A recent poll found that the mayor of a small town had the approval of 52% of the population. A new poll is being conducted one week before the election with a total of 324 randomly selected individuals. What is the probability that this poll finds the mayor’s approval below 50% ? b) It is estimated that 13.1% of Americans are left handed. What is the probability that a random sample of 100 Americans has between 10 and 15 left-handed people?
3. Assume that 12% of people are left-handed. You are trying to find 3 left-handed individuals to interview for an article. Assuming that everyone you approach is willing to be interviewed ... a) what is the probability that you need to approach exactly 6 people to find 3 left-handed individuals? b) what is the probability that you need to approach 6 or more people to find 3 left-handed individuals? c) what is the expected value of the number of individuals that you will need to approach to find 3 left- handed individuals?
Suppose that 30 percent of an adult population have an infectious disease and 40 percent have achronic disease. Assume that having an infectious disease is independent from having a chronicdisease. For each of the questions below perform the calculation using appropriate statisticalnotation.a. What is the probability that a person selected at random will have both diseases?b. What is the probability of having the infectious disease for people with the chronic disease?c. What is the probability of having the infectious disease for people without the chronic disease?d. What is the probability of not having the infectious disease for people with the chronicdisease?
In a sample of college students, 100 live on campus, 60 live with family off campus, and 40 live in an apartment off campus. A.What is the probability a randomly selected student lives off campus? B. Explain why this is an example of empirical probability.
1.1 175 random people were surveyed at an amusement park and asked if they ride roller coasters and if they play games while at the park. 91 of those surveyed ride roller coasters. 126 of those surveyed play games. 56 of those surveyed ride roller coasters and play games. a) Construct a Venn diagram illustrating the probability distribution of the outcomes. b) What is the probability a person at the amusement park does not ride roller coasters nor does he/she play games?
a. One out of four mini-vans sold by a nationwide auto dealer has a hidden defect in its transmission. i. What is the probability that a randomly selected purchaser of two mini-vans will wind up with at least one mini-van with a defective transmission? ii. What is the probability that a randomly selected purchaser of two mini-vans will wind up with exactly one mini-van with a defective transmission?

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What is the probability of selecting an employee that was in the under 25 age group from a group of employees that.... A)approved B)did not approve