One Light Bulb Is Selected at Random from a Lot

question 198

Multiple Choice

One light bulb is selected at random from a lot of 140 light bulbs, of which 2% are defective. What is the probability that the light bulb selected is defective? ​

• A) The probability is 0.04
• B) The probability is 0.01
• C) The probability is 0.02
• D) The probability is 0.03

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Definitions:

Direct Practice

The application of social work theories and methods to help individuals, families, and groups directly.

Evolution

The gradual development or change of something over a period of time, often seen in biological contexts.

Group Work

Collaborative efforts where individuals come together to achieve a common goal, often used in educational and therapeutic settings.

Settlement Houses

community-based organizations, historically established in inner urban areas, to provide various services to immigrants and the poor.