February 28, 2017

Homework Help: Math

Posted by Oshurbekova on Monday, February 20, 2012 at 9:45am.

An electronic store receives a shipment of 30 graphing calculators, including 6 that are defective. Four of these calculators are selected to be sent to a local high school. How many selections can be made? How many of this selections will contain two defective calculators?

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