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         notice of claim. Claim data then can be aggregated
         based upon these dates.

c) Frequency - The number of claims is directly
         related to the number of exposures, actuaries
         express claim incidence in terms of frequency per
         exposure unit.

Fk  =  kC
       E

Where
    Fk = frequency per k exposure units
    k = scale factor
    C = claim count
    E = exposure units

Where the context is established by either data or
previous exposition it might be appropriate to refer this
simply as frequency. In general, however, the need for
precision would require that the more specific language
'accident per year frequency per 1,000 earned car years
be used.

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