In a Set of 10 Aluminum Castings,two Castings Are Defective

question 54

Multiple Choice

In a set of 10 aluminum castings,two castings are defective (D) ,and the remaining eight are good (G) .A quality control inspector randomly selects three of the ten castings with replacement,and classifies each as defective (D) or good (G) .The sample space for this experiment contains ___ elementary events.

• A)1,000
• B)720
• C)100
• D)10
• E)3

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Definitions:

Optical Rotation

The measurement of the degree to which a chiral compound rotates plane-polarized light, a property specific to chiral substances.

α-D-Glucopyranose

A cyclic form of glucose where the ring consists of five carbon atoms and one oxygen atom, with the glucose in its alpha configuration.

Haworth

A representation method in chemistry used to depict the cyclic structure of monosaccharides with a simple three-dimensional perspective.

α-L-Fructofuranose

A form of fructose sugar with a five-membered ring structure, commonly found in honey and fruit.