X is said to have a lognormal distribution with parameters μ and σ 2 if log(X) is normal with mean μ and variance σ 2 . Suppose X is such a lognormal random variable. - The following are, in minutes, travel times to work over a sequence of 10 days. Assum- ing an underlying lognormal distribution, use the data to estimate the mean travel time: 42, 28, 53, 57, 67, 39, 35, 50, 44, 39

Q: The time (in minutes) needed to repair a machine may be modelled by a random variable having the…

A: Mean=E(T)=60 minutesT~exp(λ)

Q: g) What is the probability that 190 16300 minutes?

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Q: Ghughesh.9

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A: Let "X" be the time to wash the dishes.

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A: Solution: Let X be the continuous random variable having normal distribution with mean μ= 68…

Q: second one. Suppose the speed of the first plane (km/hr) is normally distributed with mean 550 and…

A:

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A: Given: X~U(1,2) a=1 b=2

Q: 1) Assume the following joint probability distribution: P(x,y) 1 X 3 5 сл 2 0.1 0 0.1 y 5 0.3 0.1…

A: First we calculate the conditional distribution of x/y= 5  We find P(x/y=5) for every value of x.…

Q: Suppose that the duration of a particular type of criminal trial is known to be normally distributed…

A: Given: mean = 22 days standard deviation = 6 days

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A:

Q: Suppose we have a population with mean μ and standard deviation σ. If we take a random sample of…

A: From the provided information, We have a population with mean = μ  Standard deviation = σ

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A: From the provided information, Mean (µ) = 100 Standard deviation (σ) = 20 Let X be a random variable…

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A: It is given that n=108.

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A:

Q: Assume that adults have IQ scores that are normally distributed with a mean of mμ=100 and a standard…

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Q: Assume that the amount of weight that male college students gain during their freshman year are…

A: NNote: this probability value calculated from standard normal distribution table

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A: Note:Hi there! Thank you for posting the question. As there are multiple sub parts, according to our…

Q: Use this information about the overhead reach distances of adult females: µ = 205.5 cm, σ = 8.6 cm,…

A: From the provided information, Mean (µ) = 205.5 cm Standard deviation (σ) = 8.6 cm Let X be a random…