1. A medical laboratory test ensures with a probability 0.95 the detection of COVID-19, when the virus effectively exists in the individual. Meanwhile, the test alsoindicates a positive result for three percent of the people without the virus that havetried the test. We assume that 0.5 percent of the population has the disease. Wechoose at random a person for which the test was positive. What is the probabilitythat the person is ill?

Given information: A medical laboratory test ensures with a probability 0.95 the detection of…

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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...

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Similar questions

A sample of n=64 observation (independently drawn) is selected from a population with mean 20 and s.d.16. What is the probability that the sample mean is less than 15.5?
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Assume that random guesses are made for 8 multiple-choice questions on a test with 5 choices for each question, so that there are n=8 trials, each with probability of success (correct) given by p=0.20. Find the probability of no correct answers.
I have an hour, I will be glad if you help a)A statistician has analysed the duration of audience laughter after a stand up comedian's jokes. The data showed that the laughter duration was evenly distributed between 2.7 seconds and 12 seconds. Then, the probability that the laughter after one of this comedian's jokes lasts for more than 7 seconds is ....... b)Suppose that unknown to a geneticist, there are 5 out of 12 genes that play a significant role in developing skin cancer. If the geneticist randomly samples 5 of these 12 genes and studies them, the probability that he will have sampled more than 4 skin cancer related genes is ......... Note: Provide your answer in three decimal points e.g. 0.001
I am confused when to use BinomPDF vs. BinomCDF; Find the probability that 17 or more of these 44 randomly-selected burials are babies. I know that from the probability is 13/51, I gathered this from the larger sample of data, however I do not know how to compute "or more"/"or fewer".
A research study uses 800 men under the age of 55. Thirty-percent of these men carry a marker on the male chrormosome that indicates an increased risk of high blood pressure. Ten of these men are randomly selected. If you wanted to determine the probability that exactly two of these men has the marker, what would the values of N, n, Kand x be in your computation? 800 10 K= S60
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