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Q: A population forms a normal distribution with a mean of 85 and a standard deviation of 24 compute…

A: From the provided information, Mean (µ) = 85 Standard deviation (σ) = 24 X~N (85, 24)

Q: For the normal distribution shown below, what area is contained between -2 and 1? -3 -2 -1 3 T2

A: Normal distribution is the most common continuous probability distribution. In a normal distribution…

Q: Assume that adults have IQ scores that are normally distributed with a mean of μ = 105 and a…

A: Let x be an IQ scorewant to find the probability that the IQ score is less than 135i.e. P(X<135)

Q: of 1.95 liters. Can you conclude that the mean FEV1 in the high-pollution community differs from 2.1…

A: Given : Population Standard Deviation (σ)(\sigma) = 0.4 Sample Size (n)(n) = 54 Sample Mean…

Q: Consider the normal distribution with mean 50 and standard deviation 8. Find the area under the…

A: 1)GivenMean(μ)=50standard deviation(σ)=8

Q: If 200 scores a taken at random from a normal distribution with mean 70 and standard deviation 5,…

A: From the given information,  the value of mean is 70, standard deviation is 5 and sample size (n) is…

Q: Find the standard error of the sample mean such that we have 70 random samples with mean 40 and…

A: Sample size (n) = 70mean = 25standard deviation (s)

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: The weight of a type of dog follows Normal distribution with mean of 10 pounds and standard…

A: Introduction:Denote X as the weight (pounds) of a randomly selected dog of the type.Here, μ = 10, σ…

Q: Suppose the length of human pregnancies from conception to birth varies according to a distribution…

A: We have to find variance for given data.