According to a study done by a university student, the probability a randomly selected individual will not cover his or her mouth when sneezing is 0.267. Suppose you sit on a bench in a mall and observe people's habits as they sneeze. (a) What is the probability that among 10 randomly observed individuals exactly 5 do not cover their mouth when sneezing? (b) What is the probability that among 10 randomly observed individuals fewer than 4 do not cover their mouth when sneezing? (c) Would you be surprised if, after observing 10 individuals, fewer than half covered their mouth when sneezing? Why?
According to a study done by a university student, the probability a randomly selected individual will not cover his or her mouth when sneezing is 0.267. Suppose you sit on a bench in a mall and observe people's habits as they sneeze. (a) What is the probability that among 10 randomly observed individuals exactly 5 do not cover their mouth when sneezing? (b) What is the probability that among 10 randomly observed individuals fewer than 4 do not cover their mouth when sneezing? (c) Would you be surprised if, after observing 10 individuals, fewer than half covered their mouth when sneezing? Why?
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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Transcribed Image Text:According to a study done by a university student, the probability a randomly selected individual will not cover his or her mouth when sneezing is 0.267. Suppose you sit on a bench in a mall and observe people's
habits as they sneeze.
(a) What is the probability that among 10 randomly observed individuals exactly 5 do not cover their mouth when sneezing?
(b) What is the probability that among 10 randomly observed individuals fewer than 4 do not cover their mouth when sneezing?
(c) Would you be surprised if, after observing 10 individuals, fewer than half covered their mouth when sneezing? Why?
(a) The probability that exactly 5 individuals do not cover their mouth is 0.0724.
(Round to four decimal places as needed.)
(b) The probability that fewer than 4 individuals do not cover their mouth is
(Round to four decimal places as needed.)
C
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