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

College Algebra

10th Edition

ISBN:9781337282291

Author:Ron Larson

Publisher:Ron Larson

Chapter8: Sequences, Series,and Probability

Section8.7: Probability

Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....

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