In a Manufacturing Process Involving Several Machines, the Average Down

question 72

Multiple Choice

In a manufacturing process involving several machines, the average down time t (in hours) for a machine that needs repair has the probability density function . Find the probability that a failed machine's down time is 4 hours or more. Round your answer to three decimal places. ​

• A)0.865
• B)0.998
• C)0.145
• D)0.135
• E)0.002

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Definitions:

Payback Period

The duration required for an investment to produce sufficient cash flow to recoup its original expense.

Depreciates

The process of allocating the cost of tangible assets over their useful lives, reflecting the decrease in value over time.

Revenues

The income generated from normal business operations and includes discounts and deductions for returned merchandise.

Required Rate

A specific rate of return or interest rate required by investors or lenders to compensate for the risk of an investment or loan.