TABLE 2-1: CALCULATING THE STANDARD DEVIATION OF LOSSES
14
LOSS DISTRIBUTIONS USED IN RISK MANAGEMENT
To form an empirical probability distribution
Risk manager actually observes the events that occur
11
STATISTICAL CONCEPTS
Median
Midpoint in a range of measurements Half of the items are larger and half are smaller Not greatly affected by extreme values
Mutually exclusive and collectively exhaustive list of all events that can result from a chance process
Contains the probability associated with each event
9
STATISTICAL CONCEPTS
Probability
Long term frequency of occurrence
The probability is 0 for an event that is certain not to occur The probability is 1 for an event that is certain to occur
May be found in construction contracts, sales contracts and lease agreements Ideally the specification of who is to pay for various losses should be a conscious