A particular fruit's weights are normally distributed, with a mean of 250 grams and a standard deviation of 13 grams. The heaviest 18% of fruits weigh more than how many grams?

Q: A college professor noted that the grades of his students in an introductory statistics class were…

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Q: On a standardized test, scores are normally distributed with a mean of 400 and a standard deviation…

A: Given data,μ=400σ=80P(X<x)=80%=0.80x=?

Q: Find the number of boys and the combined standard deviation

A: Given :  Our aim is to find the number of boys and combined standard deviation.

Q: If a sample has a mean of 100 and a standard deviation of 6, what is the value in the data set that…

A:

Q: Suppose that the cost of annual tuition at colleges is normally distributed, with an average annual…

A: Denote X as the cost of annual tuition at colleges. It is given that X is normally distributed, with…

Q: The depth of the snow in my yard is normally distributed, with a mean of 2.5 inches and a standard…

A: It is given that the depth of the snow follows a normal distribution with mean 2.5 inches and…

Q: The heights of men, in centimetres, are normally distributed with a mean of 175 and a standard…

A:

Q: The number of minutes spent reading in one day is normally distributed with a mean of μ = 23 and a…

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

Q: Suppose the scores of students on an exam are normally distributed with a mean of 276 and a standard…

A: X~N(μ= 276 , σ= 59 ) μ= 276 , σ= 59 Formula for Z-score Z=(X-μ)/σ

Q: For a sample of 18 cars, you find the standard deviation of the price is 6150 (measured in dollars).…

A: Given that, Sample size of cars n=18 Standard deviation of the price s=6150

Q: If the height of 1000 students in a University Campus closely follows a normal distribution with a…

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Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 261 days…

A: From the given Information, Let X represent the length of pregnancies in a small rural village and…

Q: a particular fruit weights are normally distributed, with a mean of 787 grams and a standard…

A: Let us define X=Random variable of the fruit’s weight with mean=787 grams and standard deviation= 9…

Q: For a population with a standard deviation of 6, what is the z score corresponding to a score that…

A: We are given that,Standard deviation = σ = 6And a score that is 12 points above the mean

Q: A company finds that for its 12 ounce cans of soda, the actual amount of soda inside is Normally…

A: Solution-: Given: μ=12,σ=0.25 We find x value such that P[X<x]=0.15

Q: A particular fruit's weights are normally distributed, with a mean of 358 grams and a standard…

A: Given X is normal Distributed with mean µ = 358.0 and standard deviation σ = 17.0 now will use…

Q: A set of data items is normally distributed with a mean of 80 and a standard deviation of 9 .…

A: Given A set of data is normally distributed with mean of 80 and standard deviation of 9 and x=71.so,…

Q: A study determined the average amount a person spends on candy during Halloween is $80 with a…

A: Here, μ=80 and σ=15

Q: The length of time it takes a Grade 11 student to play the Candy Crush computer app follows a normal…

A: Given that  The length of time it takes a grade 11student to play the candy crush computer is…

Q: The salaries of 300 employees of a certain factory in Baguio City have a mean of P6,500 and a…

A:

Q: The weights of Ajax salmon are approximately normally distributed with a mean of 34 pounds and a…

A: GivenMean(x¯)=34standard deviation(σ)=8

Q: A particular battery claims to have a mean life of 400 hours with a standard deviation of 30 hours.…

A: Mu=400, sigma=30 P(X>420)= ?

Q: In Melanie's Styling Salon, the time to complete a simple haircut is normally distributed with a…

A: Given, Mean = μ =25SD = σ =4

Q: The monthly income from a particular occupation is normally distributed, with a mean of 3800 dollars…

A: Given,mean(μ)=3800standard deviation(σ)=500

Q: The golf scores for a school team were normally distributed with a mean of 68 and a standard…

A: Let X be the golf scores. It is given that X is normally distributed with mean 68 and standard…

Q: The Virginia Cooperative Extension reports that the mean weight of yearling Angus steers is 1152…

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

Q: The heights of 100 high school students are measured, with a mean of 175 cm and a standard deviation…

A:

Q: A particular fruit's weights are normally distributed, with a mean of 464 grams and a standard…

A: Let "x" be the weight of the fruit in grams. Sketch the normal curve and shade the area of 0.18…

Q: The amount of time that people spend at Grover Hot Springs is normally distributed with a mean of 62…

A: Given: μ=62 minutesσ=18 minutes

Q: A particular fruit’s weights are normally distributed, with a mean of 712 grams and a standard…

A: Given,mean(μ)=712  gramsstandard deviation(σ)=28  grams

Q: The heights of American men are normally distributed with a mean of 65.3 inches and a standard…

A:

Q: If the weekly grocery expenditure of households in a certain urban market is known to be normally…

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Q: Nabisco claims that Chip Ahoy Cookies have an x=28.67 per cookie with a SD=2.67. Assuming this…

A: Here, the sample standard deviation is given as 2.67.

Q: The average income of a graduate from the University of Eastern West Virginia is $50,000 per year,…

A: X follows a Normal distribution with mean = 50000 and S.D = 2500 Then z=(x-mean)/SD =…

Q: 4. Find the 60th percentile for the weight of 10-year-old girls given that the weight is normally…

A:

Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 263 days…

A: Solution-: Given: μ=263 days, σ=13 days We want to find what range would you expect to find the…

Q: "The weights of 1,000 children, in average, is 46kg with standard deviation of 11kg. Suppose the…

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

Q: Statewide, the population as a whole watches 6.2 hours of TV per day. A random sample of 1017 senior…

A: Given data is appropriate for testing of hypothesis to test z-test for single mean because it is a…

Q: A given set of data has a specific standard deviation. Describe what will happen to the standard…

A: Answer: The standard deviation of new data is remains same as original data. As a general rule, the…

Q: The heights of male students are normally distributed with a mean of 170 cm and a standard deviation…

A: The heights of male students are normally distributed with a mean of 170 cm and a standard deviation…

Q: On a standardized exam, the scores are normally distributed with a mean of 170 and a standard…

A: We have to find z score..

Q: For a recent 10k​ run, the finishers are normally distributed with mean of 56 minutes and a standard…

A: Given data,μ=56σ=13P(45<X<70)=?

Q: in a test of a lifelong brand of tires , a survey revealed that the mean life was 35,000 mikes and…

A: Let the random variable X be the life of tires.  The random variable X follows Normal distribution…

Q: A livestock company reports that the mean weight of a group of young steers is 1172pounds with…

A: a) It is given that the mean weight of a group of young steers follows normal distribution with mean…

Q: The standard deviation of the base price of a certain type of all-terrain vehicle is equal to $322.

A:

Q: The gas mileage for a new model of car is normally​ distributed, with a standard deviation of 3.5…

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

Q: m and 5.50 m. What is the standard deviation

A: Introduction: The Standard Deviation in descriptive statistics is the degree of dispersion or…

Q: Toby's Trucking Company determined that on an annual basis, the distance traveled per truck is…

A: It is given that the mean and standard deviation are 50,000 and 12,000.

Q: sample of 25 cappuccinos shows a mean of 42.1 oz of espresso and a standard deviation of 0.38 oz. A…

A: Given: Sample size, n = 25 Sample mean,  = 42.1 Standard deviation, s = 0.38