Aluminum Castings Are Processed in Lots of Five Each

question 43

Multiple Choice

Aluminum castings are processed in lots of five each.A sample of two castings is randomly selected from each lot for inspection.A particular lot contains one defective casting; and x is the number of defective castings in the sample.P(x=0) is _______.

• A)0.2
• B)0.4
• C)0.6
• D)0.8
• E)1.0

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Definitions:

Ribosome Inactivating Proteins

Proteins that can inactivate ribosomes, inhibiting protein synthesis and having potential applications in medicine.

Ricin

A highly toxic protein derived from the beans of the castor oil plant Ricinus communis, which can cause severe illness or death if ingested, inhaled, or injected.

Inactivate

The process of making something non-functional or unable to perform its normal function.

Ribosomes

Cell organelles composed of RNA and protein, where protein synthesis takes place.