In a prohibited area 12 security guards are assigned (posted) at a certain distance. A random check conducted on 9 security guards revealed that the probability of a guard watching during the duty hour is 0.75. i) Find the probability that at least two guards sleep during duty hours? ii) How many guards are needed if at least one guard sleeps during the duty hours to ensure 94% security?

In a prohibited area 12 security guards are assigned (posted) at a certain distance. A random check conducted on 9 security guards revealed that the probability of a guard watching during the duty hour is 0.75. i) Find the probability that at least two guards sleep during duty hours? ii) How many guards are needed if at least one guard sleeps during the duty hours to ensure 94% security?

Name: In a prohibited area 12 security guards are assigned (posted) at a cer
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Description: In a prohibited area 12 security guards are assigned (posted) at a certain distance. A random check conducted on 9 security guards revealed that the probability of a guard watching during the duty hour is 0.75.i) Find the probability that at least tw

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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