Planning & Decision Making · Guided Practice
Risk and Control Measures
7 questions with answers. Try each one before revealing the answer.
1
A company faces a penalty of if a job is delayed.
The probability of a delay is .
Calculate the expected cost of the delay.
The probability of a delay is .
Calculate the expected cost of the delay.
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Answer
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2
A photographer must refund a client's fee if the photographs are late.
State one direct cost and one indirect cost the photographer would face.
State one direct cost and one indirect cost the photographer would face.
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Answer
Direct cost: the refund itself.
Indirect cost: e.g. damage to their reputation, poor reviews, or the loss of future bookings.
Indirect cost: e.g. damage to their reputation, poor reviews, or the loss of future bookings.
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3
Explain what is meant by a control measure.
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Answer
A control measure is an action taken in advance to remove a risk, or to reduce the chance of it happening.
It has a cost of its own, so it is only worth taking if it costs less than the expected cost of the risk.
It has a cost of its own, so it is only worth taking if it costs less than the expected cost of the risk.
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4
A designer buys a tablet for .
The probability of breaking it within two years is .
(a) Calculate the expected cost of breaking the tablet.
(b) A two-year protection plan costs . Determine whether the designer should buy it. Use your working to justify your answer.
The probability of breaking it within two years is .
(a) Calculate the expected cost of breaking the tablet.
(b) A two-year protection plan costs . Determine whether the designer should buy it. Use your working to justify your answer.
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Answer
(a) , so .
(b) The plan costs , which is less than the expected cost of .
The designer should buy the plan.
(b) The plan costs , which is less than the expected cost of .
The designer should buy the plan.
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5
A firm will be fined if a job is late.
The probability of it being late is .
(a) Calculate the expected cost of being late.
(b) Hiring extra staff would remove the risk completely at a cost of . Determine whether the firm should hire them. Use your working to justify your answer.
The probability of it being late is .
(a) Calculate the expected cost of being late.
(b) Hiring extra staff would remove the risk completely at a cost of . Determine whether the firm should hire them. Use your working to justify your answer.
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Answer
(a) , so .
(b) Hiring the staff costs , which is less than the expected cost of .
The firm should hire the extra staff.
(b) Hiring the staff costs , which is less than the expected cost of .
The firm should hire the extra staff.
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6
A company faces a penalty of if a project is delayed.
The probability of a delay is .
A control measure costing would reduce the probability of a delay to .
Determine whether the company should use the control measure. Use your working to justify your answer.
The probability of a delay is .
A control measure costing would reduce the probability of a delay to .
Determine whether the company should use the control measure. Use your working to justify your answer.
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Answer
Without the measure: , so .
With the measure: , so .
The company should use the control measure, as the expected cost is lower.
With the measure: , so .
The company should use the control measure, as the expected cost is lower.
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7
A control measure removes a risk completely, but costs more than the expected cost of the risk.
Explain whether a company might still choose to take it.
Explain whether a company might still choose to take it.
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Answer
It might.
The expected cost is only an average over many repeats. A company may prefer to pay a known, fixed amount rather than face a small chance of a very large loss, especially if that loss would be damaging to survive or would harm its reputation.
The expected cost is only an average over many repeats. A company may prefer to pay a known, fixed amount rather than face a small chance of a very large loss, especially if that loss would be damaging to survive or would harm its reputation.
Video solution coming soon