- May 23, 2020 at 10:20 pm
HI, I am finding the below difficult to calculate .
please can you help me understand
The front building also has a motion sensor detection system,
securely locked door and a CCTV which is observed by an onsite security guard. The
expert has estimated the likelihood of breaching these controls to at 12%,4% and 17%
respectively. At the rear, there is no motion sensor, just one securely locked door and
CCTV, the expert estimates the likelihood of attack here at 12% and 17%.
Considering the controls in place, which of the following statements are correct?
Select ALL that apply.
I. The overall probability of a successful break in is 2.12%.
II. There is a higher probability of a successful break in at the front.
III. The overall probability of a successful break in is 10.20%.
IV. There is a higher probability of a successful break in at the rear.
V. The probability of a successful break in at the front is 0.08%.
VI. The probability of a successful break in at the rear is 8.16%
A. I, II and III
B. III, IV and V
C. I, IV and V
D. II, III and IVMay 24, 2020 at 9:41 am
I can’t get them to make sense either. V bad Question eg VI is irrelevant as it figures in no answer. I suspect the data or the answers are wrong.
Is the ‘correct’ answer choice given for this question?May 24, 2020 at 9:50 pm
“the national lockdown implemented regulations which prohibited sale of alcohol and cigarettes and other non-essential items. This has resulted in unintended consequences of looting of several liquor stores across the country. Management of Beeya Liquors, which has a massive Distribution Center (DC) in the heart of the city where the most looting took place are looking at tightening their security. They have consulted an expert to assist in tightening the security in order to reduce the likelihood of attack and therefore minimize the loss in profits and damage to property. The expert has identified that the front and the rear side of the DC are most susceptible to break ins. It is however unlikely that both sides could be attacked at the same time. The front of the DC is more likely to be accessed by the looters than the rear of the building”
the above was the scenario.
i dont have the model answer unfortunately.May 25, 2020 at 8:34 am
Thanks for the additional information, but it doesn’t help. It’s the numbers that seem wrong.
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