Homework Help: statistics

Posted by Stephanie on Monday, January 25, 2010 at 4:55pm.

At Guadalajara Airport, passengers must claim their luggage and then proceed to Customs. In the Customs area, each passenger will press a button that activates a modified stoplight. This light has only red and green bulbs. If the green light shows, the passenger is free to go. If the light turns red, then Customs agents will inspect the passenger's luggage. Customs officials cliam that the light has probability 0.30 of showing red on any press of the button. You are traveling with 6 family members, and you are the seventh person in line.

Find the probability that exactly one of the family memebers in front of you is stopped.

statistics - Damon, Monday, January 25, 2010 at 6:09pm
probability of exactly one out of six.
Binomial distribution
P(x=1) = C(6,1) (.3)^1 (.7)^5
.3^1 = .3
.7^5 = .168
C(6,1) = 6!/[ 1! (5!) ] = 6
so 6 * .3 * .168 = .302
statistics - rachel, Wednesday, March 13, 2013 at 1:11pm
Im a fat cheatercheater

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