The Average Time Between Failures for a Solenoid Is 36

question 31

Essay

The average time between failures for a solenoid is 36 months.Determine the following probabilities: (i)probability of failure before 36 months(ii)the probability that a system which is composed of two such solenoids will fail within 36 months if both must work for the system to work

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Definitions:

Marginal Utility

The additional satisfaction or benefit received by consuming one more unit of a good or service.

Money Income

The total amount of monetary earnings received by an individual or household before any deductions like taxes or social security contributions.

Units

Fundamental quantities used to measure, count, or quantify objects or events.

Diminishing Marginal Utility

See Law of Diminishing Marginal Utility.