Content: teorver_3775.doc (25.00 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
3775. The shop receives the products of three factories. Moreover, the production of the first factory is 20%, the second - 45% and the third - 35% of products. It is known that the average percentage of non-standard products for the first factory is 1%, for the second - 5%, and for the third - 2%. The likelihood of a randomly taken product being non-standard equals ...
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
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