Problem No. 8 In a construction site, the management decided to implement a three (3) shift scheme to maximize the work of its employees to meet the project's deadline. Moreover, workers are constantly encouraged to practice zero tolerance when it comes to accidents in construction sites. Accidents can occur because the working environment or conditions themselves are unsafe. On the other hand, accidents can occur due to carelessness or so- called human error. In addition, the worker's shift, 7:00-3:00 P.M. (day shift), 3:00-11:00 P.M. (evening shift), or 11:00 P.M. - 7:00 A.M. (graveyard shift), may be a factor. During the last year, 300 accidents have occurred. The percentages of the accidents for the condition combinations are as follows: Shift Unsafe Conditions Human Error Day Evening Graveyard 5% 6% 32% 25% 2% 30% If an accident report is selected randomly from the 300 reports, a. What is the probability that the accident occurred on the graveyard shift? b. What is the probability that the accident occurred due to human error? c. What is the probability that the accident occurred due to unsafe conditions?

Problem No. 8 In a construction site, the management decided to implement a three (3) shift scheme to maximize the work of its employees to meet the project's deadline. Moreover, workers are constantly encouraged to practice zero tolerance when it comes to accidents in construction sites. Accidents can occur because the working environment or conditions themselves are unsafe. On the other hand, accidents can occur due to carelessness or so- called human error. In addition, the worker's shift, 7:00-3:00 P.M. (day shift), 3:00-11:00 P.M. (evening shift), or 11:00 P.M. - 7:00 A.M. (graveyard shift), may be a factor. During the last year, 300 accidents have occurred. The percentages of the accidents for the condition combinations are as follows: Shift Unsafe Conditions Human Error Day Evening Graveyard 5% 6% 32% 25% 2% 30% If an accident report is selected randomly from the 300 reports, a. What is the probability that the accident occurred on the graveyard shift? b. What is the probability that the accident occurred due to human error? c. What is the probability that the accident occurred due to unsafe conditions?

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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