Content: teorver_4712.doc (26.50 KB)
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Loyalty discount! If the total amount of your purchases from the seller more than:

$3 the discount is 1%
$6 the discount is 2%
$9 the discount is 3%
$12 the discount is 4%
$15 the discount is 5%
$18 the discount is 6%
$20 the discount is 7%
$30 the discount is 10%
$0.32
4712. Each lottery ticket with probability p1=0.21 may get a big win, with probability p2=0.39 a small win, and with probability p3=0.4 the ticket may end up without a win. Bought n=14 tickets. Determine the probability of getting n1=4 big wins and n2=4 small ones.
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
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