The Average Life for a Particular Brand of Car Battery

question 79

Multiple Choice

The average life for a particular brand of car battery is given by the following probability density function where t is in years. ​Find the probability that a battery chosen at random lasts between 2 and 7 years. Round your answer to two decimal places. ​

• A) 1.72
• B) 0.43
• C) 0.54
• D) 0.34
• E) 0.65

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Definitions:

Mezzo Level Skills

Social work practices targeted at small-to-medium-sized groups, such as communities or institutions.

Generalist Practice

A broad approach in social work that applies a wide range of knowledge, skills, and methods to assess and address issues at individual, family, community, and societal levels.

Supervision

The act of overseeing the work or tasks of others to ensure standards are met and providing guidance, support, and feedback.