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15) According to the CDC the Janssen vaccine was 77% effective at preventing hospitalization due to COVID-19 (probability they will not be hospitalized is p = 0.77). From a sample of n = 1000 people exposed to the COVID-19 virus, let X = number of people not hospitalized. Find the probabliity that: a) Exactly 750 of them were not hospitalized for COVID-19. b) Less than 775 of them were not hospitalized for COVID-19. c) More than 780 of them were not hospitalized for COVID-19.

15) According to the CDC the Janssen vaccine was 77% effective at preventing hospitalization due to COVID-19 (probability they will not be hospitalized is p = 0.77). From a sample of n = 1000 people exposed to the COVID-19 virus, let X = number of people not hospitalized. Find the probabliity that: a) Exactly 750 of them were not hospitalized for COVID-19. b) Less than 775 of them were not hospitalized for COVID-19. c) More than 780 of them were not hospitalized for COVID-19.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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15) According to the CDC the Janssen vaccine was 77% effective at preventing hospitalization due to COVID-19 (probability they will not be hospitalized is p = 0.77). From a sample of n = 1000 people exposed to the COVID-19 virus, let X = number of people not hospitalized. Find the probabliity that: a) Exactly 750 of them were not hospitalized for COVID-19. b) Less than 775 of them were not hospitalized for COVID-19. c) More than 780 of them were not hospitalized for COVID-19. 16) Suppose 80% of all flights by an airline are on time. Out of a random sample of 50 flights: a) Find the probability that 35 or fewer are on time. b) Find the Mean, Variance, and Standard Deviation c) How many (out of 50) would we "Expect" to be on time?
Transcribed Image Text:15) According to the CDC the Janssen vaccine was 77% effective at preventing hospitalization due to COVID-19 (probability they will not be hospitalized is p = 0.77). From a sample of n = 1000 people exposed to the COVID-19 virus, let X = number of people not hospitalized. Find the probabliity that: a) Exactly 750 of them were not hospitalized for COVID-19. b) Less than 775 of them were not hospitalized for COVID-19. c) More than 780 of them were not hospitalized for COVID-19. 16) Suppose 80% of all flights by an airline are on time. Out of a random sample of 50 flights: a) Find the probability that 35 or fewer are on time. b) Find the Mean, Variance, and Standard Deviation c) How many (out of 50) would we "Expect" to be on time?
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