A study was conducted to determine if the results of a test indicated whether a disease was present or not in 200 trials. The results are listed in the table below. Presence of Disease Test Result Total + Result − Result Present 84 3 87 Not Present 7 106 113 Total 91 109 200 What is the probability that a randomly selected subject received positive results or they received negative results?

A study was conducted to determine if the results of a test indicated whether a disease was present or not in 200 trials. The results are listed in the table below. Presence of Disease Test Result Total + Result − Result Present 84 3 87 Not Present 7 106 113 Total 91 109 200 What is the probability that a randomly selected subject received positive results or they received negative results?

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

See similar textbooks

Similar questions

Migraine medication was administered to patients in that 12% experienced weight gain as a side effect. If a random sample of 15 patients were chosen what is the probability that exactly 4 experienced weight gain as a side effect?
Dana Hills High School was considering going back to campus rather than remote instruction for the remainder of the semester. To make this decision, the school sent out a survey to students, parents, teachers, and staff to see if they would prefer remote or on campus instruction. The results of the survey are given in the table below. Find the probability that a person has no preference or is a student. Student Parent Teacher Staff TOTAL Remote 54 78 59 36 227 On-Campus 79 82 37 55 253 No Preference 23 12 11 54 ТОTAL 156 172 104 102 534 0.406 O 0.393 O 0.350 0.327 0.311
An actuary studied the likelihood that different types of drivers have at least one collision during any one- year period. The results of the study appear below. Type Percentage teen young adult middle aged adult senior 7 17 59 17 Collision % 16 LO 5 4 5 Find the probability that a driver with at least one collision in the past year is a middle aged adult driver.
Organ Donors USA Today provided information about a survey of 5100 adult Internet users. Of the respondents, 2346 said they are willing to donate organs after death. In this survey conducted for Donate Life America, 100 adults were surveyed in each state and the District of Columbia, and results were weighted to account for the different state population sizes. a. What percentage of respondents said that they are willing to donate organs after death? b. Based on the poll results, what is the probability of randomly selecting an adult who is willing to donate organs after death? c. What term is used to describe the sampling method of randomly selecting 100 adults from each state and the District of Columbia?
The CDC did a study on various ways to quit smoking. The results of the study are shown below. Nicotine Gum Nicotine Patch Nicotine Inhaler Still Smoking 191 263 95 Quit Smoking 59 57 27 Suppose a person in the study is chosen randomly. What is the probability that the person was still smoking at the end of the study?
The CDC did a study on various ways to quit smoking. The results of the study are shown below. Nicotine Gum Nicotine Patch Nicotine Inhaler Still Smoking 191 263 95 Quit Smoking 59 57 27 Suppose a person in the study is chosen randomly. What is the probability that the person was still smoking given that they used the nicotine gum? T T T Arial
A survey showed that 76% of adults need correction (eyeglasses, contacts, surgery, etc.) for their eyesight. If 14 adults are randomly selected, find the probability that at least 13 of them need correction for their eyesight. Is 13 a significantly high number of adults requiring eyesight correction?
A social scientist gathers a carefully chosen group of 20 people whom she is selected to represent a broad cross section of the multiple of the population in New York City. She interviews them in depth for a study that she is doing regarding race relations in the city. Is there a probability sample? Explain your answer.
Sixty percent of clowns aren’t funny. If you randomly encounter three different clowns, what is the probability that none of them are funny?
Five percent of all blue ray players manufactured by a large electronics company are defective. A quality control inspector randomly selects three players from the production line. What is the probability that exactly one of these three blue ray players is defective?