(d) Let N = {1, 2, 3, 4, 5}. Assume that P[{1}] = 0.1, P[{2}] = 0.2, and P[{3}] = 0.2. What is P[{3,4,5}]? (e) In Metropolis, the probability that a random citizen has Covid is 0.1 (determined via high- quality surveillance testing). LexCorp is selling a test that returns false negatives with conditional probability 0.2 and false positives with conditional probability 0.05. Given that a citizen tests negative, what is the conditional probability that they actually have Covid? If a citizen tests positive, what is the conditional probability that they actually have Covid?

A First Course in Probability (10th Edition)
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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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Problem 1
quested quantities.
(~)
143
in
5 1/2
1 Co oll
a 14.II
a
(d) Let = {1, 2, 3, 4, 5]. Assume that P[{1}] = 0.1, P[{2}]
Ω
P[{3, 4, 5}]?
=
DI
Determine each of the re-
Wat i-
1/0.
0.2, and P[{3}]
and
= 0.2. What is
(e) In Metropolis, the probability that a random citizen has Covid is 0.1 (determined via high-
quality surveillance testing). LexCorp is selling a test that returns false negatives with
conditional probability 0.2 and false positives with conditional probability 0.05. Given that
a citizen tests negative, what is the conditional probability that they actually have Covid?
If a citizen tests positive, what is the conditional probability that they actually have Covid?
Transcribed Image Text:Problem 1 quested quantities. (~) 143 in 5 1/2 1 Co oll a 14.II a (d) Let = {1, 2, 3, 4, 5]. Assume that P[{1}] = 0.1, P[{2}] Ω P[{3, 4, 5}]? = DI Determine each of the re- Wat i- 1/0. 0.2, and P[{3}] and = 0.2. What is (e) In Metropolis, the probability that a random citizen has Covid is 0.1 (determined via high- quality surveillance testing). LexCorp is selling a test that returns false negatives with conditional probability 0.2 and false positives with conditional probability 0.05. Given that a citizen tests negative, what is the conditional probability that they actually have Covid? If a citizen tests positive, what is the conditional probability that they actually have Covid?
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