The duration of childbirths are normally distributed. The mean is 268 days with a standard deviation amounting to 15. What is the probability of a childbirth that lasts less than 250 days? * 0.0606 0.1591 0.1151 0.0066

Q: The average life of a electric rice cooker is 5 years, with a standard deviation of 1 year. Assume…

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Q: The average ticket price for a Spring Training baseball game is $30.81, with a standard deviation of…

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Q: The average sales price of a single-family house in the United States is $235,500. You randomly…

A: Given,  Mean μ=235500  Standard deviation σ=50000  x=225000

Q: The average ticket price for a Spring Training baseball game is $30.81, with a standard deviation of…

A: Mean = 30.81Standard deviation = 5.69Sample size = 40

Q: The height of Christmas trees are normally distributed. The standard deviation of Christmas trees is…

A: Given: μ=1250 and σ=200   The z is calculated asz=x-μσ

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Q: Bryse is 27 years old. Based on a normal distribution with mean 47.8 years and standard deviation…

A: GivenBryse is 27 years oldx=27Mean(μ)=47.8standard deviation(σ)=12.6

Q: Find the indicated probability. The lengths of humpback whales' pregnancies are normally…

A: x = length of human pregnancies Mean μ = 330 standard deviation (σ) = 25

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Q: When the weight of a parcel of oranges was measured, it was observed that the average 200 grams and…

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Q: The mean daily production of a herd of cows is assumed to be normally distributed with a mean of 33…

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Q: The average sales price of a single-family house in the United States is $235,000. You randomly…

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Q: In the country of United States of Heightlandia, the height measurements of ten-year-old children…

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Q: Lalamove delivery service in Metro Manila has a mean delivery time of 55 minutes with a standard…

A: Given,mean(μ)=55standard deviation(σ)=20

Q: A normal distribution has a mean of 150 and a standard deviation of 50. Calculate the probability we…

A: Mean = 150 Standard deviation = 100

Q: The mean daily production of a herd of cows is assumed to be normally distributed with a mean of 39…

A: Given,mean(μ)=39standard deviation(σ)=9.2

Q: According to data from facebook.com, in 2016 the average amount of time that users spend each day on…

A: Given Mean=50 Standard deviations=14.5 P(x>45)=?

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Q: The time required in a laboratory to test a blood sample is approximately normally distributed, with…

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Q: An elevator has a weight capacity of 2000 pounds. Assume the weights of us men have a mean of 190…

A: The probability the elevator will be over capacity is obtained below:From the given information X…

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Q: A quality assurance officer ensures that their soft drink product adheres to the stated quantity of…

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A: a. Let X be the time needed to complete a final examination in a particular college course which…

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Q: The time needed to complete a final examination in a particular college course is normally…

A: μ=80 minutesσ=10 minutes

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Q: The mean daily production of a herd of cows is assumed to be normally distributed with a mean of 36…

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Q: The probability that an individual is left-handed is 0.18. In a class of 80 students, what is the…

A: Let x follows binomial distribution with parameters n = 80 and p = 0.18   The pdf of binomial…

Q: The weights of elephants are normally distributed. The mean weight is 5,200 kg and the probability…

A: Given : Weights of elephants are normally distributed with 5200 kg Let X : Weights of elephants…

Q: The average time a person spends shopping in a grocery store is 43 minutes. If the time is normally…

A: Given,sample size(n)=20mean(μ)=43standard deviation(σ)=8

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A: Given data :  μ=22.5gσ=3.8g

Q: The height of Christmas trees are normally distributed. The standard deviation of Christmas trees is…

A: Given Information: The height of Christmas trees are normally distribution with mean μ=1400 inches…

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A: Given,mean(μ)=5standard deviation(σ)=1.2sample size(n)=100

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Q: The mean daily production of a herd of cows is assumed to be normally distributed with a mean of 35…

A: Given : Mean = 35  Standard deviation = 5.9  Probability ( 30.3 ≤ x ≤ 49)

Q: The lengths of human pregnancies are normally distributed with a mean of 268 days & a standard…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: The scores on a test for children in an eighth-grade class is normally distributed with a mean of 73…

A: Let X is the score on a test for children in an eighth-grade class. X~Normalμ=73,σ=5.7

Q: A small retail store has customers whose ages are normally distributed, with a mean of 37.5 and a…

A: A small retail store has customers whose ages are normally distributed, with a mean of 37.5 and a…

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A: Given that  X~N( μ=300 , ?=65) μ = 300 , ? = 65 Z-score =( x - μ )/?

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A: Given: Sample size (n) = 40 Sample mean μ=32.70 Population standard deviation σ=5.42 Let X ~…

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Q: The mean amount spent by a family of four on food is $500 per month with a standard deviation of…

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Q: A normal distribution has a mean of 150 and a standard deviation of 50. Calculate the probability we…

A: According to the given information, we have The distribution is normal. Mean = 150 Standard…