[ 360 J 
PRO POS. 1. 
Concerning the Credibility of a Report^ made by Single 
Succeflive Reporters^ who are eo^mlly Credible. 
LE T their Reports have, each of them, Five Sixths 
Certiinty ; and let the firft Reporter give me a 
Certainty of a 1000 /, in 1200 / ; it is plain that the Se- 
cond Reporter, who deUvers that Report, will give mc 
the Certainty but of \ths^ of that lo'oo / or the \th of 
^hs of the full Certainty for the whole 1200/. And 
fo a Third Reporter, who has it from the fecond, will 
tranfmit to me but \ths of that Degree of Certainty, 
the Second would have delivered mt&c. 
That is, if, ay be put for the Share of Aflurance a 
fingle Reporter gives me . and, for th^t which is want- 
ing to make that Affurance compleat ^ aqd I therefore 
fuppos'd to have 1-^ of Certainty from the Firft 
44 
Reporter ^ I fhall have from the Second, ^:^7T^'t^o'^ 
Third, =T. 
And accordingly if, ^ be loo^ and (^hc 
number of Pounds that an loo/^put out to Intereft brings 
at the Years end and confequently my Share of Cer- 
tainty from One Reporter, be = ^ which is the prc- 
fent value of any Summ to be paid a Year hence ; The 
Pri:>portian of Certainty coming to m^' from a Second, 
will be fit multiplied by %^ (which is* the prefent Va- 
lue of Money to be paid after two Ye^rs ^and that frouk 
a fhird-handi Reporter, =: ,11, thrice multiplied ima 
itfelf-7 (the Value of Mony payable at the end of Three 
Yeats,) e^^. ^ ^ . 
Corollary. 
And therefore , as at the Rate of 6 per^ C^^ 
In- 
