The average height of flowering cherry trees in a nursery is 11 feet. If the heights are normally distributed with a standard deviation of 1.6, fınd the probability that a tree is less than 13 feet tall. O 0.67 O 0.89 O 0.95 O 0.78

Q: The weights of college football players are normally distributed with a mean of 200 pounds and a…

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Q: he reading speed of second grade students in a large city is approximately​ normal, with a mean of…

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Q: The heights of women have a symmetric distribution with a mean of 64 inches and a standard deviation…

A:

Q: The main weight of members of a weight watchers' chapter is 250 Ibs. the standard deviation is 24…

A: Given that  μ=250σ=24n=36 A) The probability that the mean weight is more than 260 lbs is,…

Q: The life expectancy of a particular brand of tire is normally distributed with a mean of 30,000 and…

A: Given that.   X~N( μ , ?^2 )   μ=30000    , ?=6000   Z-score =( x - μ )/?

Q: The average income in the city of Red Deer is $85,000 with a standard deviation of $20,000.  A…

A: It is given that the mean is $85,000 and the standard deviation is $20,000.

Q: The lengths of lumber a machine cuts are normally distributed with a mean of 93 inches and a…

A:

Q: The lengths of lumber a machine cuts are normally distributed with a mean of 86 inches and a…

A: X follows a Normal distribution with mean = 86 and S.D = 0.4 Then z=(x-mean)/SD = (x-86)/0.4…

Q: The lengths of lumber a machine cuts are normally distributed with a mean of 88 inches and a…

A: The mean length of lumber cut by machine is 88 inches and the standard deviation is 0.3 inches. Let…

Q: The length of time it takes to find a parking space at 8am follows a normal distribution with a mean…

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Q: A Harris poll claims that each person in the US will spend an average of $92.12 on Halloween this…

A: Given :  A Harris poll claims that each person in the US will spend an average of $92.12 on…

Q: The average weight of an adult male in one state is 172 pounds with a standard deviation of 16…

A: Given datamean=172standard deviation=16n=36

Q: The reading speed of second grade students is approximately normal with a mean of 90 words per…

A: Given data,μ=90σ=10P(X>95)=?

Q: The weight of football players is normally distributed with a mean of 200 pounds and a standard…

A: According to the provided information, Mean (μ) = 200 Standard Deviation (σ) = 25

Q: The mean cholesterol levels of women age 45-59 in Ghana, Nigeria, and Seychelles is 5.1 mmol/l and…

A: Given, The mean cholesterol levels of women age 45-59 in Ghana, Nigeria, and Seychelles is 5.1…

Q: The amount of rain falling in Waimea Canyon State Park, Kauai is normally distributed with a mean of…

A: Let x¯ is defined as the mean rain of 16 randomly picked days which follows normal distribution. The…

Q: The time sent waiting to hear back from a particular therapist office follows a normal distribution…

A: Given:Mean μ=204 standard deviation σ=25.7 What is the probability that a randomly selected person…

Q: A bank's loan officer rates applicants for credit. The ratings are normally distributed with a mean…

A: We have given that  The ratings are normally distributed with mean 200 and standard deviation 50.

Q: The price of lunch at the mall has a mean of $5.00. The standard deviation is $1.50. What is the…

A:

Q: Blood pressure is distribued Normally, with a mean of 85 mm and a standard deviation of 20 mm. As a…

A: Given,mean(μ)=85standard deviation(σ)=20sample size(n)=100

Q: The tip percentage at a restaurant has a mean value of 18% and a standard deviation of 6%. What is…

A: Obtain the approximate probability that the sample mean tip percentage for a random sample of 40…

Q: The mean height of Grade III pupils is 138 cm with a standard deviation of 8 cm. If a sample of 30…

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Q: A manufacturer knows that their items have a normally distributed lifespan, with a mean of 11.6…

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Q: The lengths of lumber a machine cuts are normally distributed with a mean of 88 inches and a…

A: The random variable length of lumber a machine cuts follows normal distribution. The population mean…

Q: The spending at Target is distributed normally with a mean spending of $47.67 and a standard…

A:

Q: The weight of football players is normally distributed with a mean of 200 pounds and a standard…

A: From the provided information, Mean (µ) = 200 pounds Standard deviation (σ) = 25 pounds X~N (200,…

Q: The lengths of lumber a machine cuts are normally distributed with a mean of 88 inches and a…

A: Given,Mean μ = 88Standard deviation σ = 0.6

Q: The amount of cereal in a carton is listed as 18 ounces. The cartons are filled by a machine, and…

A:

Q: The lengths of lumber a machine cuts are normally distributed with a mean of 91 inches and a…

A: Given : Let X be the lengths of lumber a machine cuts. μ = 91 inch σ = 0.4 inch a) P(X > 91.17) =…

Q: The lifetime of a particular type of car tire is normally distributed. The mean lifetime is 50,000…

A: Answer: A. 10200.

Q: The length of time it takes college students to find a parking spot in the library parking lot…

A: We have given that,  Let X be random variable from normal distribution with mean (μ) = 5.0 and…

Q: The heights of adult males in the United States are approximately normally distributed. The mean…

A: I am going to solve the given problem by using some simple algebra to get the required result.

Q: The score obtained on a Maths exam is normally distributed, with an average score (μ) of 56 and a…

A: According to the provided information, Mean (μ) = 56 Standard Deviation (σ) = 11.25

Q: The time it takes for acrylic paint to dry follows a normal distribution. If the mean is 2 hours and…

A: Solution: Let X be the time it takes for acrylic paint to dry. From the given information, X follows…

Q: The mean output of hamburger patty of the Southern Valley Meat Corporation is 120,000 pounds daily,…

A: Given,mean(μ)=120,000standard deviation(σ)=40,000

Q: The annual precipitation amounts in a certain mountain range are normally distributed with a mean of…

A: Mean(µ) = 88Standard deviations (σ) = 10 X ~ N (µ, σ )= N(88, 10)

Q: Find the indicated probability. The incomes of trainees at a local mill are normally distributed…

A: We have given that,  X be the random variable from normal distribution with mean (μ) = 1100,…

Q: The lengths of lumber a machine cuts are normally distributed with a mean of 86 inches and a…

A: GivenMean(μ)=86standard deviation(σ)=0.6

Q: The volumes of soda in quart soda bottles are normally distributed with a mean of 32.3 oz and a…

A: It is given that the mean is 32.3 and standard deviation is 1.2.

Q: The time taken to download a particular app has been found to be normally distributed, with an…

A: Probability takes value ranges from 0 to 1. It can't take any negative values or values greater than…

Q: A test has a mean soore of 150 and a standard deviation of 12. Scores are normally distributed. What…

A: Let X denote the test score and it follows normal distribution with mean of μ=and standard deviation…

Q: The time to complete a standardized exam is approximately normal with a mean of 70 minutes and a…

A: Given that the mean of 70 minutes and a standard deviation of 10 minutes. Suppose the students are…

Q: The price of lunch at the mall has a mean of $5.00. The standard deviation is $1.50. What is the…

A:

Q: The lengths of lumber a machine cuts are normally distributed with a mean of 94 inches and a…

A:

Q: A set of scores in Statistics examination is approximately normally distributed with a mean of 74…

A: Given: The value of mean is, μ=74. The value of standard deviation is, σ=7.9. The objective is to…

Q: The volume of cracker boxes are normally distributed, with a mean of 7 oz and a standard deviation…

A: Obtain the standard z-score for  equals 6.5. The standard z-score for equals 6.5 is obtained below:…

Q: The amount of cereal in a carton is listed as 18 ounces. The cartons are filled by a machine, and…

A:

Q: A bank's loan officer rates applicants for credit. The ratings are normally distributed with a mean…

A: Comments: Hi! Thank you for the question, As per the honor code, we are allowed to answer one…

Q: Major league baseball salaries averaged $3.26 million with a standard deviation of $1.2 million in…

A:

Q: the heights of 200 plants in a garden follow a normal distribution with mean of 72.3 cm with a…

A: Formula : Z =(X - μ)/σ