Each sample of water has a 10% chance of containing a particular organic pollutant. Assume that the samples are independent with regard to the presence of the pollutant. - H a. Find the probability that, in the next 18 samples, exactly 2 contain the pollutant. b. What is the probability that in the next 20 samples at least 1 sample contain the pollutant? What is the probability that at most 2 samples are polluted in next 20 samples? d. What is the probability that at least 2 out of samples are polluted? C.
Each sample of water has a 10% chance of containing a particular organic pollutant. Assume that the samples are independent with regard to the presence of the pollutant. - H a. Find the probability that, in the next 18 samples, exactly 2 contain the pollutant. b. What is the probability that in the next 20 samples at least 1 sample contain the pollutant? What is the probability that at most 2 samples are polluted in next 20 samples? d. What is the probability that at least 2 out of samples are polluted? C.
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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Transcribed Image Text:1. Each sample of water has a 10% chance of containing a particular organic pollutant. Assume that
the samples are independent with regard to the presence of the pollutant. - H
a. Find the probability that, in the next 18 samples, exactly 2 contain the pollutant.
b. What is the probability that in the next 20 samples at least 1 sample contain the pollutant?
What is the probability that at most 2 samples are polluted in next 20 samples?
d. What is the probability that at least 2 out of samples are polluted?
C.
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