A Box Contains Two Defective Christmas Tree Lights That Have

question 35

Essay

A box contains two defective Christmas tree lights that have been inadvertently mixed with eleven nondefective lights. If the lights are selected one at a time without replacement and tested until both defective lights are found, what is the probability that both defective lights will be found after three trials? Give your answer in fraction form.

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Definitions:

Marshall

A title used in several official positions within different spheres, such as military or ceremonial, often associated with maintaining order and executing duties.

American System

An economic plan that played a significant role in American policy during the first half of the 19th century, advocating for a high tariff, a national bank, and federal subsidies for roads, canals, and other infrastructures.

Steam Power

A form of energy generated by heating water to create steam, historically significant for its use in the Industrial Revolution.

Manufacturing Environment

The setting or conditions in which the production of goods is carried out, often involving factories, machinery, and labor.