What is the greatest amount of time that a newborn can sleep and still be in the bottom 75% of newborn sleep times?

Q: The annual per capita consumption of oranges (in pounds) in the United States  can be approximated…

A: It is given that the mean and standard deviation are 19.2 and 4, respectively.

Q: The length of human pregnancies from conception to birth approximates a normal distribution with a…

A: Let X be length of time marks the longest 2.16 % of all pregnancies from normal distribution with…

Q: Cerebral blood flow (CBF) in the brains of healthy people is normally distributed with a mean of 74…

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Q: About what percent of the products last between 12 and 15 days?

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Q: Female cougar weights are normally distributed with mean=102 pounds and standard deviation= 13…

A: Answer:-  Given that, μ=102, σ=13

Q: The gestation period for human births can be taken as normally distributed with a mean of 256 days…

A:

Q: The scores on a standardized test are normally distributed with a mean of 105 and standard deviation…

A: Here, mean is 105 and standard deviation is 10.

Q: The weight of new born babies is normally distributed with a mean of 3.5Kg and a standard deviation…

A:

Q: What is the standard deviation on the graph ?

A:

Q: The weights of men in their 30s are normally distributed with a mean of 190 pounds and a standard…

A: From the provided information, Population mean (µ) = 190 pounds Population standard deviation (σ) =…

Q: Diastolic blood pressures are assumed to follow a normal distribution with a mean of 85 and a…

A: Consider X be a random variable which follows normal variable indicates diastolic blood pressure. It…

Q: College students average 7.8 hours of sleep per night with a standard deviation of 40 minutes. If…

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Q: What percentage of the data will fall between 1 standard deviation below the mean and 2 standard…

A: P(-1<z<2)=?

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

A: It is given that the mean and standard deviation are 10 and 2.

Q: The salaries of a company's employees are normally distributed with mean 15000 and standard…

A:

Q: The retirement age of National Football League (NFL) players is Normally distributed with a mean of…

A: Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.…

Q: he retirement age of National Football League (NFL) players is Normally distributed with a mean of…

A:

Q: The serum cholesterol level in me aged 18  to 74 are normally distributed with a mean of 178.1 and a…

A:

Q: The height of trees in a nursery is normally distributed with a mean of 56.4 inches and a standard…

A: The height of trees in a nursery is normally distributed with a mean of 56.4 inches and a standard…

Q: College students average 7.4 hours of sleep per night with a standard deviation of 45 minutes. If…

A: Given data  college students average 7.4 hrs of sleep with standard deviation of 45mins

Q: A normally distributed set of data has been generated where 50% of the data lies below 97 and 70%…

A:

Q: A reading exam was conducted for 4thgrade children and 9thgrade children. The 4thgrade children have…

A: Given: For 4th grade children mean μ is 20 and standard deviation σ is 5. The mean of 9th grade…

Q: otal cholesterol in children aged 10-15 is assumed to follow a normal distribution with a mean of…

A: Z= x-μσ~N(0,1)

Q: The admission committee of AUCA passes 61% of those who took the exam. If the scores follow a normal…

A: We have given that.   X~N( μ , ?^2 )   μ =350 , ? =25   Z-score =( x - μ )/?

Q: The length of human pregnancies from conception to birth approximates a normal distribution with a…

A:

Q: The mean grade on a statistics exam is/M=82, the standard deviation is=12. What actual grade has a…

A: The normal distribution  in the center are generally denser and basically less denser at tails.…

Q: Assume that women have heights that are normally distributed with a mean of 63.6 inches and a…

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Q: The distribution of heights of adult Filipino is approximately normal with a mean of 69 inches and…

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Q: Use Chebyshev's Theorem to find what percent of the values will fall between 120 and 150 for a data…

A: The percentage of observations that are within k std dev. of the mean is 100(1-1k2)%

Q: Approximately what percentage of normally distributed data will fall within 2 standard deviations…

A: Based on the Concept of Empirical Rule: About 68% of the area under the curve falls within 1…

Q: Head circumferences of some males have a bellshaped distribution with a mean of 57 centimeters and a…

A: Head circumferences of some males have a bellshaped distribution : Bell shaped distribution means…

Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 262 days…

A: Let "X" be the lengths of pregnancies in a small rural village in days.

Q: For woman at Hartford college, times to run 400 meters are normally distributed with a mean of 85…

A: Solution: Let X be the time to run 400 meters. From the given information, X follows normal…

Q: The weights of students in a large statistics class vary according to a normal distribution with…

A:

Q: The lengths of a particular animal's pregnancies are approximately normally distributed with mean of…

A:

Q: ter and a standard deviation of 25 milligrams per deciliter. What cholesterol level separates the…

A: mean = 215 standard deviation = 25 What cholesterol level separates the lowest 10​% from the highest…

Q: The drive distance (in yards) for professional golfers is normally distributed with a mean of 308.04…

A: The normal distribution: A continuous random variable X is said to follow normal distribution with…

Q: How does one calculate the standard deviation?

A:

Q: The length of human pregnancies from conception to birth approximates a normal distribution with a…

A: From the provided information, Mean (µ) = 268 Standard deviation (σ) = 17

Q: The scores on a standardized test are normally distributed with a mean of 90 and standard deviation…

A: The test score is 0.6 standard deviations above the mean is obtained below: From the given…

Q: The number of hurricanes coming within 250 miles is modeled by Polsson distribution with meanz per…

A: Let X be the time, in years, between hurricanes. The number of hurricanes coming within 250 miles of…

Q: The length of time for women’s high school volleyball games is normally distributed with a mean of…

A: Given Data Population Mean,μ = 53.0 Population Standard Deviation,σ = 6.0