Suppose that X is normally distributed with mean 80 and standard deviation 30. A. What is the probability that X is greater than 137? Probability = B. What value of X does only the top 10.93% exceed? X =

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Q: 2. During my office hours (from 12pm to 6pm), an average of about 2 student per hour comes in for…

A: During my office hours (from 12 pm to 6 pm), an average of about 2 students per hour come in for…

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Q: uppose that ? is normally distributed with mean 75 and standard deviation 25. A. What is the…

A: Given that, μ=75,σ=25 (A) The probability that X is greater than 112.25 is, Therefore, the required…

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A: Given that, Mean µ=156 Standard deviation σ =15

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Q: (b) What is the probability that chloride concentration differs from the mean by more than 1…

A: It is given that  Mean, μ = 107 Standard deviation, σ = 5 Z-Score, Z = ( X - μ )/σ

Q: b. Find the probability that a randomly selected acre in the forest has fewer than 28,814 ants. c.…

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A: Let X be the IQ score normally distribution with mean 100 and standard deviations 10 X~N(μ=100…

Q: The average student loan debt for college graduates is $25,600. Suppose that that distribution is…

A: Note- Giving solution for part (C) only.   Given information Population mean μ = $25,600 Population…

Q: IQ is normally distributed with a mean of 100 and a standard deviation of 15. Use the Cumulative…

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Q: IQ is normally distributed with a mean of 100 and a standard deviation of 20. Use the Cumulative…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: d. What is the probability that the sample mean will be between 250 pounds and 257 pounds? P (250…

A: Given that μ=247.2,σ=35,n=34

Q: suppose that ? is normally distributed with mean of 105 and standard deviation of 28. A. What is…

A: suppose that x is normally distributed with mean of 105 and standard deviation of 28.

Q: IQ is normally distributed with a mean of 100 and a standard deviation of 15. Suppose one individual…

A: let X: IQ X~N(μ,σ)where, mean(μ)=100    and standard deviation(σ)=15

Q: 1.29% of fly balls are hit further than what distance? • What distribution will you use to calculate…

A: 1)We have given that theMeanµ = 269Standard deviationsσ = 71Let X be a random variable denoting…

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Q: IQ is normally distributed with a mean of 100 and a standard deviation of 15. Use the Cumulative…

A: Let X denote the IQ and it follows normal distribution with mean μ=100, and standard deviation of…

Q: The total annual precipitation for a region is approximately normally distributed with a mean of…

A: Given data normal distributionμ = 1050 mmσ = 400 mmP(1050<x<1300) = ?

Q: The amount of calories consumed by customers at the Chinese buffet is normally distributed with mean…

A: As per our company guidelines we are supposed to answer only first three sub-parts. Kindly repost…

Q: 2. The average American walks 4,500 steps per day with a standard deviation of 900 steps. If this…

A: GIVEN DATA normal distributionμ = 4500σ = 900

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Q: The number of calories consumed by customers at the Chinese buffet is normally distributed with mean…

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Q: What is the P (11 ≤ x ≤ 13)?

A: Given a normal distribution with mean of 12 & standard deviation of 2.

Q: Fill in the blanks. (Enter an exact positive number as an integer, fraction, or decimal.) In a…

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Q: The amount of annual snowfall in a certain mountain range is normally distributed with a mean of 75…

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Q: > Assume the time it takes the housekeeping crew of a local hotel to clean a room varies uniformly…

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Q: In normal distribution find the mean when the standard is 5 and 3.78% of the area lies to the left…

A: Suppose the variable of interest is x. The random variable x follows normal distribution with mean µ…

Q: 6-The mean number of hours an American worker spends on the computer is 3.1 hours per workday.…

A: Mean(μ)=3.1 Standard deviation(σ)=0.5

Q: The amount of annual snowfall in a certain mountain range is normally distributed with a mean of 70…

A: let x be the amount of annual snowfall in certain mountain range follow normal distribution with…

Q: Suppose you have a normal distribution with mean 110 and standard deviation 15. Approximately what…

A: Given that  Mean = M = 110 , Standard deviation = SD = 15 X ~ Normal (M = 110 , SD = 15)

Q: Nielsen Company the mean number of TV sets in a US Household in 2013 was 2.24. Standard deviation is…

A: The provided information are: Population mean μ=2.24 Population standard deviation σ=1.4 Sample size…

Q: need help solving

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Q: (a) What percent of the SAT verbal scores are less than 625? (b) If 1000 SAT verbal scores are…

A: It is given thatMean, μ = 508Standard deviation, σ = 118Z-Score, Z = ( X - μ )/σwhere, Z be the…