Suppose a COVID-19 is 85% sensitive and 82% specific. That is, the testwill produce 85% true positive results for those that have the virus and82% true negative results for those who do not. Suppose that 3.3% ofpeople actually have the virus. If a randomly selected individual testsnegative, what is the probability he or she does not have the virus?YOUR ANSWER SHOULD BE BETWEEN O AND 100 AND ROUNDED TO 4DECIMAL PLACES.(e.g. 59.5321 would be 59.5321%)

Let us define some events A : a person has the virus. B : a person does not have the virus. E : a…

Answered: Suppose a COVID-19 is 85% sensitive and…

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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Consider 2 experiments. Experiment 1:4 fair dices are tossed. The person wins he/she gets one or more 1's. Experiment 2: 8 fair dices are tossed. The person wins if he/she gets two or more l’s. Identify which experiment has a higher probability of winning.
During a month in Adana, it rains with probability 2/3 each day, independently of every other day. Compute the variance of the number of rainy days in this month (a month=30 days). а. 1 O b. 1/3 O c. 2/3 O d. 20/3 e. 10/3
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Physicians at a clinic gave what they thought were drugs to 960960 asthma, ulcer, and herpes patients. Although the doctors later learned that the drugs were really placebos, 5252 % of the patients reported an improved condition. Assume that if the placebo is ineffective, the probability of a patients condition improving is 0.490.49. For the hypotheses that the proportion of improving is 0.490.49 against that it is >0.49>0.49, find the p-value. p=p=
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