Exhibit 5-9

question 79

Multiple Choice

Exhibit 5-9.On a particular production line,the likelihood that a light bulb is defective is 5%.Ten light bulbs are randomly selected. Refer to Exhibit 5-9.What are the mean and variance of the number of defective bulbs?

• A)0.475 and 0.475
• B)0.475 and 0.6892
• C)0.50 and 0.475
• D)0.50 and 0.6892

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Definitions:

Cognitively Limited

Describes a condition or state where an individual's mental capacity is restricted in understanding or processing information.

Preoperational Stage

A stage in Piaget's theory of cognitive development, typically from ages 2 to 7, characterized by symbolic thinking, egocentrism, and a lack of logical reasoning.

Represent Objects

The process of using symbols, words, or other means to depict or stand in for real-world entities or concepts.

Piaget

A Swiss developmental psychologist best known for his theory of cognitive development that describes how children develop logical thinking over time.