<P>under a stop-loss insurance arrangement,  the insurance amount paid is 80% of the excess of aggregate claims above 20, <BR>subject to a maximum payment of 5. <BR>All claim amounts are non-negative integers. you are given: Deductible: 16       20        24         25        26      27<BR>                                         Net stop-loss premium: 3.89    3.33    2.84     2.75    2.69    2.65</P>
<P>  Determine the expected amount paid by the insurer<BR></P>