A factor used in retrospective premium calculations. It is a percentage of the standard premium and is used to provide the insurer with up-front money for administrative expenses. The Basic Premium Ratio, a percentage, is generally found in the retro manual of the plan being used. Retrospective plans, otherwise known as retros, are claim sensitive workers compensation rating programs specifically designed and used when an employer is of the size required to justify its use.
Q: In which order will seismic waves from an earthquake arrive? A. P waves, S waves, L waves B. L waves, S waves, P waves C. P waves, L waves, S waves D. S waves, P waves, L waves. A: P waves, S waves, L waves is the order of the seismic waves in which an earthquake arrives. baby_SJ01|Points 310|.
The earth conducts seismic waves-- when an earthquake occurs, stations farther and farther away from the quake see the S and P waves propagated through deeper and deeper layers. By measuring the arrival time of the waves, the velocity of the waves can be found as a function of depth.he earth conducts seismic waves-- when an earthquake occurs, stations farther and farther away from the quake see the S and P waves propagated through deeper and deeper layers. By measuring the arrival time of the waves, the velocity of the waves can be found as a function of depth.