# An airplane has 100 seats for passengers. Assume that the ## Problem 1SE Chapter 4

Statistics for Engineers and Scientists | 4th Edition

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Problem 1SE

An airplane has 100 seats for passengers. Assume that the probability that a person holding a ticket appears for the flight is 0.90. If the airline sells 105 tickets, what is the probability that everyone who appears for the flight will get a seat?

Step-by-Step Solution:
Step 1 of 3

Solution 1SE

Step1 of 3:

We have An airplane and it has 100 seats of passengers.

Assume that the P( a person holding a ticket appears for the flight) = 0.90.

That is x = 100 p = 0.90.

We need to the probability that everyone who appears for the flight will get a seat when the airline sells 105 tickets.

Step2 of 3:

Here X be the random variable it represents the number of people out of 105 who appear for the flight. That is n = 105.

Let X follows binomial distribution with parameters “n and p ”.

Then the probability mass function of binomial distribution is given by: , x = 0,1,2,...,n.

Where,

n = sample size

x = random variable

p = probability of success

q = 1 - p (probability of failure)

= 1 - 0.90

= 0.10

Now,

1).Mean of the binomial distribution is = = 94.5

Hence, = 94.5.

2).Standard deviation of binomial distribution is = = ...

Step 2 of 3

Step 3 of 3

##### ISBN: 9780073401331

The full step-by-step solution to problem: 1SE from chapter: 4 was answered by , our top Statistics solution expert on 06/28/17, 11:15AM. Since the solution to 1SE from 4 chapter was answered, more than 357 students have viewed the full step-by-step answer. This full solution covers the following key subjects: appears, Probability, Flight, passengers, everyone. This expansive textbook survival guide covers 153 chapters, and 2440 solutions. This textbook survival guide was created for the textbook: Statistics for Engineers and Scientists , edition: 4th. Statistics for Engineers and Scientists was written by and is associated to the ISBN: 9780073401331. The answer to “An airplane has 100 seats for passengers. Assume that the probability that a person holding a ticket appears for the flight is 0.90. If the airline sells 105 tickets, what is the probability that everyone who appears for the flight will get a seat?” is broken down into a number of easy to follow steps, and 44 words.

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