The taxi and takeoff time for commercial jets is a random variable x with a mean of 8.6 minutes and a standard deviation of 3.3 minutes. Assume that the distribution of taxi and takeoff times is approximately normal. You may assume that the jets are lined up on a runway so that one taxies and takes off immediately after the other, and that they take off one at a time on a given runway.   (a) What is the probability that for 34 jets on a given runway, total taxi and takeoff time will be less than 320 minutes? (Round your answer to four decimal places.)

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A: Given, Mean, μ = 483 standard deviation, σ=17  We have , Z = x-μσ

Q: At another park, at a random selected time, there were 80 individuals having a picnic. It was found…

A: From the provided information, Sample size (n) = 80 40% of them were fully vaccinated that is p =…

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A: Given::-- Birds arrive at a feeding table independently, at an average rate of six per hour.

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A: It is given that the fruit weights follow normal distribution with mean 799 grams and standard…

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A:

Q: For a certain type of computers, the length of time between charges of the battery is normally…

A: Answer The mean =50Standard deviation =15

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A: From the provided information, Mean (µ) = 10 Standard deviation (σ) = 2

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A:

Q: The life, in hours, of a battery produced by company A has a normal distribution with mean 20 and…

A: Introduction: Denote the random variable representing the life (hours) of a randomly selected…

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A: The random variable X follows normal distribution. The population mean is 614. The population…

Q: Assume that newborn girls have birth weights with a mean of 3022 grams and a standard deviation of…

A: μ=3022σ=716n=100

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A:

Q: unt of time it takes a mechanic to rebuild the transmission for a 2005 Chevrolet Cavaliershows that…

A: The standard deviation of 40 mechanics is selected, the standard deviation of the sampling…

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A: The random variable is fruit’s weight. It follows standard normal distribution. The population mean…

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A: Obtain the standard z-score for the random variable X equals 548. The standard z-score for the…

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A:

Q: The probabilities that fast – food restaurant sells 10, 20, 30, 50, 100 burgers daily are 0.20,…

A:

Q: Suppose in a certain primary school, the weight of boys are normally distributed with mean 28kg and…

A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the mean…

Q: A particular fruit's weights are normally distributed, with a mean of 583 grams and a standard…

A: Mean = 583 Standard deviation = 35 Sample size = 18

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A: given data normal distributionμ = 794 gramsσ = 38 grams

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A: P(443<X<528)=?

Q: A particular fruit's weights are normally distributed, with a mean of 477 grams and a standard…

A: Mean u = 477grams Standard deviation o = 14 grams P(477 < x < 491) = ?

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A: Given: Mean =675 Standard Deviation = 40 Find out The probability that it will weigh between 694…

Q: A project's profit (in thousands), is a random variable with normal distribution. The variance equal…

A: The normal distribution is also known as Gaussian distribution. In normal distribution data are…

Q: The probability that a person who exercises and eats well has a heart attack is predicted to be 0.5…

A: We know that if; Y~Binomial(n,p)Then the expected value of Y is;E(Y)=npand the standard deviation of…

Q: A particular fruit's weights are normally distributed, with a mean of 432 grams and a standard…

A: A particular fruit's weights are normally distributed, with a mean of 432 grams and a standard…

Q: A pair of dice are rolled. Let X be a random variable that denotes the sum of the number of dots…

A: Here Given  Pair of dice are rolled  So Total Possible number of Outcome=6×6=36

Q: A particular fruit's weights are normally distributed, with a mean of 575 grams and a standard…

A: R command has utilized to find the probability.

Q: A particular fruit's weights are normally distributed, with a mean of 448 grams and a standard…

A:

Q: A particular fruit's weights are normally distributed, with a mean of 3/1 grams and a standard…

A: given data normal distribution μ=371σ=11P(386<x<397)=?

Q: he probability that a house in an urban area will be burglarized is 5%. A sample of 50 houses is…

A: Given,n=50p=0.05A random variable X~Binomial(n=50 . p=0.05)P(X=x)=50x0.05x1-0.0550-x   ;…

Q: An engineer is going to redesign an ejection seat for an airplane. The seat was designed for pilots…

A: a)   The probability that the weight is between 150 lb and 211 lb is 0.5598 and it is calculated…

Q: Suppose the average weight of a male US resident aged 20 to 30 years is 160 pounds with a standard…

A:

Q: rticular fruit's weights are normally distributed, with a mean of 515 grams and a standard deviation…

A: Given data,Mean μ=515sd     σ=26P(488<X<506)=?

Q: A particular fruit's weights are normally distributed, with a mean of 366 grams and a standard…

A: Given information: A particular fruit's weights are normally distributed, with a mean of 366 grams…

Q: Let X be the Random Variable representing the number of boys in families with 3 children. Find the…

A: Solution-: Let X be the Random Variable representing the number of boys infamilies with 3 children.…

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A: Given: Population mean (µ) = 394 Population standard deviation (σ) = 21 Consider, X be the random…

Q: Paul drives to work each moming and the trip takes an average of u- 38 minutes. The distribution of…

A: X follows a Normal distribution with mean = 38 and S.D = 5 Then z=(x-mean)/SD = (x-38)/5  follows…

Q: The height of 10 year old females is normally distributed with a mean of 54.8 inches and a standard…

A: It is given that mean and standard deviation are 54.8 inches and 2.74 inches, respectively.

Q: 3 A play is enjoying a long run at a theatre. It is found that the play time may be modelled as a…

A: We have given that,  Play time be modelled are normally distributed with mean (Mu) = 130 minutes…

Q: A particular fruit's weights are normally distributed, with a mean of 752 grams and a standard…

A: Let X be the random variable from normal distribution with mean (μ) = 752 and standard deviation…

Q: The manufacturer of cans of salmon that are supposed to have a net weight of 6 ounces tells you that…

A:

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.