A random variable has an unknown mean µ and standard deviation o. If P(X > 4) = 0.9772 and P(X > 5) = 0.9332, what are µ and o?

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A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

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Q: if X is normally distributed random variable with a mean of 80 and a standard deviation of 12, then…

A: GivenMean(μ)=80standard deviation(σ)=12

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Q: If the random variable X has a normal distribution with a mean 88 and standard deviation 12, then…

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Q: If the random variable x is normally distributed with a mean of 88 and a standard deviation of 12,…

A: Given that, Mean = 88 Standard deviation = 12

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Q: A sample is selected from a population with a mean of 65 and a standard deviation of 15. If the…

A: It is given that:

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A: Given information: The proportion of 0s in our sample = 0.50 P(Y = 1) = P(Y = 0) = 0.50

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A: Given: µ = 75 σ = 8

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Q: Let X be a random variable with mean 4 and standard deviation o. What is E[X2]?

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Q: Suppose x is a normally distributed random variable with a mean of 12 and a standard deviation of 3.…

A: Given,      Meanμ=12      Standard deviationσ=3

Q: Suppose that the distribution for a random variable x is normal with mean 15 and standard deviation…

A: the PDF of normal distribution is = 1/σ * √2π * e ^ -(x-u)^2/ 2σ^2standard normal distribution is a…

Q: A sample is selected from a population with a mean of 65 and a standard deviation of15. If the…

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Q: Consider a normally distributed random variable X with a mean of 85 and standard deviation of 10.…

A: first question is incomplete please re-submit the question with complete information.

Q: If X is normally distributed random variable with a standard deviation of 16. Find the mean given…

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Q: If a continous random variable, x, is normally distributed with a mean of 100 and a standard…

A: Given : X is normally distributed with a mean of 100 and a standard deviation of 15.

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Q: If all possible samples of size 16 are drawn from a normal population with mean equal to 50 and…

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