Let X denote the time in hours needed to locate and correct a problem in the software that governs the timing of traffic lights in the downtown area of a large city. Assume that X is normally distributedwith mean 10 hours and variance 9. Find the probability that the next problem will require at most 15 hours to find and correct. а. b. The fastest 5% of repairs take at most how many hours to complete?

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A: We have to find Based on relative frequency, is it more likely that he will complete his next two…

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A:

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A:

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A: Option a) is correct.

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A: Since , n=40 Our aim is to Calculate the Relative Frequency of patients living less than 5 months…

Q: The average stock price for a company is $30, and the variance is 67.24. Assume that the stock…

A: From the provided information, The average price for a company is $30 and variance is $67.24. That…

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A: Given Data: Let X represent the height of the maple tree P(X<150)=0.3 σ=64=8

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A: D~lnNμ,σ and E(D) = 10260CV(D) = 40%

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A: Given data,n=6df=n-1=5x=9s=2.07α=0.10t-critical value is tc=2.015

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A: The correlation coefficient is calculated using excel as follows:

Q: c) the gestation time differs from the mean by more than 3 weeks. d) of 100 boys born in upstate NY…

A: Given, for males born in upstate NY, the gestation times are normally distributed with a mean of 39…

Q: Explain the term variability (this is not asking for a definition).

A: Here we want to explain Variability.

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A: Here we have to check which of the following is positively correlated with person's longevity i.e we…

Q: In a report, a mill states a daily consumption of 1200kWh of energy with a variance of 300kWh?. A…

A: σ=1200, σ2=300n=100

Q: Suppose that the monthly demand for a consumer good follows a normal distribution with an average of…

A: From the given information, Consider, X that the monthly demand for a consumer good follows a normal…

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A: The formula of range is,

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Q: Which of the three brands had the smallest mean lifetime?

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Q: If it is known that the percentage of successful students is 75%, and you take a sample of 15…

A: Givenp=0.75n=15Let "x" be the no.of successful bears x~Binomial(n=15,p=0.75)P(X=x)=(nx)(p)x(1-p)n-x…

Q: 80% of beans seeds sprout. Three seeds were planted. Find the distribution of the variable X number…

A: Given : n = 3 P = 0.80 q = 1 - p     = 1 - 0.80 = 0.20

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A: Given that  A study found that 1.21% of Social Security recipients are too young to vote. P = 0.0121…

Q: Suppose that the duration of the game is normally distributed. The mean= 10 mins, while the SD= 2…

A: Given, X follows normal distribution(μ,σ) mean , μ = 10standard deviation ,σ = 2

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A: Given: The percentage of successful students is 75% Sample size n=15

Q: A large normally distributed population has a mean of 502 and a standard deviation of 25. If the…

A: Given,sample size(n)=36mean(μ)=502standard deviation(σ)=25

Q: The mean of 5 observations is 4.4 and the variance is 8.24. If the three of the five observations…

A:

Q: Suppose that the distribution of diastolic blood pressure in men aged 35-44 years follows a normal…

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A: Given X1=11 X2=14 X2=8

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A:

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A: From the given information we find the solution.

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A: We have to find given statement is true or false

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