Homework Help: math

Posted by mel on Sunday, April 6, 2008 at 7:39pm.

Delta airline flights seats 340 people. An average of 5% of the people with reservations doesnt show up, so they overbook by 350. This system can be analyzed by using binomial distribution. n=350 and p=0.95

1) Find the probablity that 350 reservations there are more passangers then seats. Find P(at least 341 people with reservations show up)

how do I do this????

math - drwls, Sunday, April 6, 2008 at 8:48pm
The mean of the distribution of the number of passengers showing up is n*p and the standard deviation is sqrt [n*p*(1-p)]. Calculate those numbers.

Using these values and the normal distribution tool at
http://psych.colorado.edu/~mcclella/java/normal/accurateNormal.html, I get the probability of 341 or more booked passengers showing up to be 1.9%
math - mateo, Thursday, March 7, 2013 at 6:59pm
Might be subtraction.so I don't know this.

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