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A certain flight arrives on time 85 percent of the time. Suppose 159 fights are randomly selected. Use the normal approximation to the binomial to approximate the probability that (a) exactly 128 flights are on time. (b) at least 128 flights are on time. (c) fewer than 142 flights are on time (d) between 142 and 148, inclusive are on time.

A certain flight arrives on time 85 percent of the time. Suppose 159 fights are randomly selected. Use the normal approximation to the binomial to approximate the probability that (a) exactly 128 flights are on time. (b) at least 128 flights are on time. (c) fewer than 142 flights are on time (d) between 142 and 148, inclusive are on time.

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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A certain flight arrives on time 85 percent of the time. Suppose 159 flights are randomly selected. Use the normal approximation to the binomial to approximate the probability that (a) exactly 128 flights are on time. (b) at least 128 flights are on time. (c) fewer than 142 flights are on time (d) between 142 and 148, inclusive are on time. (a) P(128)= (Round to four decimal places as needed.)
Transcribed Image Text:A certain flight arrives on time 85 percent of the time. Suppose 159 flights are randomly selected. Use the normal approximation to the binomial to approximate the probability that (a) exactly 128 flights are on time. (b) at least 128 flights are on time. (c) fewer than 142 flights are on time (d) between 142 and 148, inclusive are on time. (a) P(128)= (Round to four decimal places as needed.)
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