Content: teorver_1295.doc (30.00 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
1295. The probability that any subscriber will call the switch for an hour is 0.02. The telephone exchange serves 300 subscribers. Find the probability that a switch will be called during a given hour
a) 3 subscribers
b) at least 2 subscribers
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
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