During a professor's office hours, students arrive, on average, every ten minutes. Assume that the distribution of the time between arrivals follows an exponential distribution. Suppose that a student has just left. Suppose that a student has just left. Only 25% of the time will the professor have to wait approximately how long or longer before the next student shows up?

Q: The initial value of a building is $986,260. After one year, the value of the building is $936,947.…

A: Initial value  of building = 986,260 After one year Value = 936,947 Value after three years = ?

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A: The lifetime in hours of an alkaline battery is exponentially distributed with λ=0.10 per hour. The…

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A:

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A: Given : μ = 20 and σ=10 Log normal distribution

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A: We have given that X ~ Exponential (λ) λ = 0.08 n = 40

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Q: The life of an electronic controller is distributed lognormally, with the parameters ?′ = 20 and ?′…

A: Given , the parameters  μ = 20 and  σ =10

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Q: As a result of testing 20 parts following the exponential distribution for 75 hours, 6 failures…

A: Solution

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A: The probability density function of an exponential distribution is as follows:…

Q: The average lifetime of a certain new cell phone is 4 years. The manufacturer will replace any cell…

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A: Given that losses follows lognormal distribution with μ=6.9078 and σ=1.5174.

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A: Introduction: Denote the random variable X as the life (years) of a randomly selected battery.

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A: Here, we have: Constant = 2.0583 Coefficient of weeks = 0.0022

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A: exponential function can be represent as below : f(x) = a(b)x

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Q: The initial value of a building is $986,260.  After one year, the value of the building is $936,947.…

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.