According to flightstats.com, Jet Blue flights from Dallas to Seattle are on time 90% of the time. 200 flights are selected at random. (4 decimal places)a. What is the average number of on time flights?b. What is the standard deviation of the on-time arrival times?c. What is the probability that exactly 185 of the flights are on time?d. What is the probability that at least 180 of the flights are on time?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
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Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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According to flightstats.com, Jet Blue flights from Dallas to Seattle are on time 90% of the time. 200 flights are selected at random. (4 decimal places)
a. What is the average number of on time flights?
b. What is the standard deviation of the on-time arrival times?
c. What is the probability that exactly 185 of the flights are on time?
d. What is the probability that at least 180 of the flights are on time?

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