A company surveyed 2,600 North American airline passengers and reported that approximately 70% said that they carry a smartphone when they travel. Suppose that the actual percentage is 70%. Consider randomly selecting ten passengers and define the random variable x to be the number of the ten selected passengers who travel with a smartphone. The probability distribution of x is the binomia distribution with n = 10 and p = 0.7. (Round your answers to three decimal places.) (a) Calculate p(7). P(7) = 0.267 (b) Calculate P(x ≤ 8). P(x ≤ 8) = 0.851 (c) Calculate the probability that more than half of the selected passengers travel with a smartphone. X
A company surveyed 2,600 North American airline passengers and reported that approximately 70% said that they carry a smartphone when they travel. Suppose that the actual percentage is 70%. Consider randomly selecting ten passengers and define the random variable x to be the number of the ten selected passengers who travel with a smartphone. The probability distribution of x is the binomia distribution with n = 10 and p = 0.7. (Round your answers to three decimal places.) (a) Calculate p(7). P(7) = 0.267 (b) Calculate P(x ≤ 8). P(x ≤ 8) = 0.851 (c) Calculate the probability that more than half of the selected passengers travel with a smartphone. X
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:A company surveyed 2,600 North American airline passengers and reported that approximately 70% said that they carry a smartphone
when they travel. Suppose that the actual percentage is 70%. Consider randomly selecting ten passengers and define the random
variable x to be the number of the ten selected passengers who travel with a smartphone. The probability distribution of x is the binomial
distribution with n = 10 and p = 0.7. (Round your answers to three decimal places.)
(a) Calculate p(7).
p(7) = 0.267
(b) Calculate P(x ≤ 8).
P(x ≤ 8) = 0.851
(c) Calculate the probability that more than half of the selected passengers travel with a smartphone.
X
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