An officer walks into a computer room where there are no students present. He notices that there are two Windows computers, and all other computers run Linux. As he leaves the room, four students enter. They uniformly randomly go and sit at four computers to work at. Our officer is clever: • he determines that the probability that all students sit at Linux computers is A; . He determines that the probability that two of the four students sit at the windows computer is B; After that, the officer was very surprised to find that A = B! How many computers are in the computer room

An officer walks into a computer room where there are no students present. He notices that there are two Windows computers, and all other computers run Linux. As he leaves the room, four students enter. They uniformly randomly go and sit at four computers to work at. Our officer is clever: • he determines that the probability that all students sit at Linux computers is A; . He determines that the probability that two of the four students sit at the windows computer is B; After that, the officer was very surprised to find that A = B! How many computers are in the computer room

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section11.8: Probabilities Of Disjoint And Overlapping Events

Problem 2C

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