The Probability Density Function for the Life Span of an Electronics

question 89

Multiple Choice

The probability density function for the life span of an electronics part is where t is the number of months in service. Find the probability that any given part of this type lasts longer than 18 months. Round your answer to three decimal places. ​

• A) 0.487
• B) 0.513
• C) 0.532
• D) 0.497
• E) 0.468

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Definitions:

Reinforce

To strengthen a behavior by providing a consequence that increases the likelihood of the behavior being repeated.

Avoidance Conditioning

A response that prevents the occurrence of a punisher. This increases the probability of a low-occurring response and maintains that response at a high level. The principle of avoidance conditioning states that a behavior will increase in frequency if it prevents a punisher from occurring.

Yelled At

The act of raising one’s voice in a sharp, often aggressive manner, typically as a form of reprimand or expression of frustration towards someone.

Party

A social gathering of invited guests, typically involving eating, drinking, entertainment, and often celebrating a specific occasion.