1 for commercial flights in 2009 approximately 90 arrived

Assignment Help Applied Statistics

Reference no: EM13382116

1. For commercial flights in 2009, approximately 90% arrived on time (within 15 minutes of scheduled arrival time). Complete parts a through c below.

a. Assuming that this success rate still holds, if you randomly select five flight and assume they are independent, what is the probability that all will arrive on time?

The probability that all five will arrive on time is____________.

Round answer to three decimal places as needed.

b. What is the probability that at least one of the flights will be late?

Round answer to three decimal places as needed.

c. If all five flights are on the same day in December and all five flights to the same city, explain why the binomial model is not appropriate for finding the probability that at least one flight will be late.

Choose the correct answer below.

A. The flights might not be independent, because the weather could be bad and that might cause most of the flights to be late. Thus, if one flight is late, the others are more likely to be late.

B. The number of outcomes is greater than two, since flights could be either on time, late due to the bad weather or late because the flights ahead of it were delayed due to bad weather.

C. The number of flights is not fixed, because some flights might need to make emergency landings and never arrive due to bad weather.

2. According to a traffic safety administration organisation, the rate of seat belt use i a certain country for 2009 was 84%. Suppose that you looked at two people, selected randomly and independently from the population, to see weather each had his or her seat belt fastened in 2009.

A. What is the probability that neither person had her or his belt fastened?

P(Neither fastened)=_________ (round to four decimal places as needed)

B. What is the probability that at least one person had her or his belt fastened? (Hint: "At least on had the belt fastened" is the complement of "neither one had the belt fastened."

P(At least one fastened)=_________ (Round to four decimal places as needed)

Reference no: EM13382116

Questions Cloud

How the fed should respond to prevailing conditionsconsider : how the fed should respond to prevailing conditions.consider the existing economic conditions including inflation and

Select a corporation in the fortune 500 category refer to : select a corporation in the fortune 500 category. refer to the most recent financial statement report of the

The abc corporation has been in operation for one full year : the abc corporation has been in operation for one full year 2010. financial statements follow. abcs management is

In the following article christopher nobes suggests that : in the following article christopher nobes suggests that there are several reasons for the differences in accounting

1 for commercial flights in 2009 approximately 90 arrived : 1. for commercial flights in 2009 approximately 90 arrived on time within 15 minutes of scheduled arrival time.

1 freddies fruits delivers orchard-fresh fruits to your : 1. freddies fruits delivers orchard-fresh fruits to your doorstep every morning. if you sign up for a 5.00month vip

Algorithm design and development - the graduate designs and : algorithm design and development - the graduate designs and develops algorithms for problem solving and implements

What people need is a quality of mind that will help them : what people need... is a quality of mind that will help them to use information and to develop reason in order to

Prove that the two-dimensional compression of a gaussian : prove that the two-dimensional compression of a gaussian function in three dimensions is still a gaussian.hint the

User Account

All Pages