Find the standard deviation. Houses Sold (x) Probability P(x)

Q: What is the probability of randomly selecting an income greaterthanX= $75,000 per year in a set of…

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Q: A random variable follows the continuous uniform distribution between 20 and 50.  a. Calculate the…

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Q: The average student loan debt for college graduates is $25,000. Suppose that that distribution is…

A: Solution

Q: in a certain region, the mean annual salary for electricians is $58,650. Let x be a random variable…

A: GivenMean(μ)=58650standard deviation(s)=1890sample size(n)=40

Q: sample of University Students has an average GPA of 2.78 with a standard Deviation of .45. What is…

A: As per bartleby guideline expert have to answer first three subpart only dear student please upload…

Q: The mean weight of 500 female students at a certain college is 152 lb. And the standard deviation is…

A:

Q: A grocery​ store's receipts show that Sunday customer purchases have a skewed distribution with a…

A: given that sunday customers purchases have a skewed distribution with mean of $25 and standard…

Q: I. Clayton County clinics have determined that the average number of patients that daily visit their…

A: We have to find given probability.

Q: A radio station 10 song requests per day. Determine the probability that it receives 18 song…

A: Let X be the number of song requests in a week which follows Poisson distribution with a mean 10…

Q: Suppose that a plaque in an elevator contains the following​ statement: Maximum weight 3500 pounds…

A: If the elevator is overloaded then it will exceed its maximum weight so we need to find P(T>3500)…

Q: The weight of female goats is Normally-distributed with a mean of 145 lbs. and a standard deviation…

A: X~N(145,9^2) n=8, Xbar=139, s=11, sigma=sd=9. We want to find P(139<X<145)= ?

Q: The weight of female goats is Normally-distributed with a mean of 145 lbs. and a standard deviation…

A: Here the weights of the female goats are normally distributed with mean=145 and standard…

Q: Police response time to an emergency call is the difference between the time the call is first…

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Q: The number of ships to arrive at a harbor on any given day is a random variable represented by x.…

A: Following information can be calculated from the given table.     The mean of the number of ships…

Q: Police response time to an emergency call is the difference between the time the call is first…

A: The formula for z score is,  The probabilities is computed by using standard normal table.

Q: A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of…

A: Given Data: Let X represent the random variable Mean=153 Standard deviation=1.8   X~ Normal (153,…

Q: Find the indicated probability. 23. The average number of pounds of red meat a person consumes each…

A:

Q: The weight, X grams of soup filled in a tin by machine RST is normally distributed with a mean of…

A: Given : The weight, X grams of soup filled in a tin by machine RST is normally distributed with Mean…

Q: The gypsy moth is a serious threat to oak and aspen trees. A state agriculture department places…

A: Given: Population mean μ=0.5 Population standard deviation σ=0.7 x=Number of moths trapped

Q: Police response time to an emergency call is the difference between the time the call is first…

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Q: Full-time Ph.D. students receive an average of $12,837 per year. If the average salaries are…

A: Given that, Mean = 12837 Standard deviation = 1500

Q: Police response time to an emergency call is the difference between the time the call is first…

A: Let X denote the police response time has a normal distribution with a mean of 7.6 minutes and a…

Q: Teachers' Salaries The average annual salary for all U.S. teachers is $47,750. Assume that the…

A: P(36,000≤X≤51,000)   =P( X ≤51000 ) - P( X ≤36000)

Q: A newsstand manager is tracking Y, the number of weekly magazines left on the shelf when the new…

A: Given: The probability distribution of Y is Y P(Y=y) 3 13 7 14 10 13 12 112 E[X] =…

Q: At a restaurant a server kept track of their weekly tips and found that they have the following…

A: weekly tips (X) $200 $300 $400 P(X)=probability 0.5 0.4 0.1

Q: Police response time to an emergency call is the difference between the time the call is first…

A:

Q: et X be a random variable that represents the level of glucose in the blood (milligrams per…

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Q: The population mean annual salary for flight attendants is $56,275. A random sample of 48 flight…

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Q: Let X denotes the number of boys in families with 3 children. The probability that any one child is…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

Q: A travelling salesman makes a sales on 65% of his calls on regular customers.he makes four calls…

A: From the provided information, Probability of success, p=0.65 Number of trials, n=4 Let X be the…

Q: Assume that thermometer readings are normally distributed with a mean of 0°C and a standard…

A: Given data,μ=0σ=1P(1<X<2.25)=?

Q: 3) An F-1 race has an average length of 305 kilometers with a standard deviation of 72 kilometers.…

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Q: If a fair coin is tossed 25 times, the probability distribution for the number of heads, X, is given…

A: As mentioned in the question, I will use excel to solve this question.…

Q: Employees in a business have a standard normal distribution with an average monthly salary of 1700₺…

A: GivenMean(μ)=1700standard deviation(σ)=500

Q: Packages of food with mean weight equal to 454 grams and with standard deviation of 20 grams are…

A: Let X denotes the weight (in grams) of a package. Given that μ=454 and σ=20. A box contains 100…

Q: Mary drives to work each morning, and the trip takes an average of µ = 38 minutes. The distribution…

A: Given: µ = 38 minutes,  σ = 5 minutes. The Z follows standard normal distribution. Z=X-μσ

Q: A door-to-door salesperson is visiting houses in Hamilton to sell internet plans. The probability…

A: The probability that a house decides to buy the internet plan is 25%. The salesperson visits 100…

Q: Police response time to an emergency call is the difference between the time the call is first…

A: we have given that mu=7.2 ,sigma=2.1 X~N(mu ,sigma^2) Z-score=(x-mu)/sigma

Q: Full-time Ph. D students receive an average of $12,837 per year. If the average salaries are…

A: Given that, Mean = 12837 Standard deviation = 1500

Q: Teachers' Salaries The average annual salary for all U.S. teachers is $47,750. Assume that the…

A:

Q: The average weekly income of a supervisor on duty in the glass industry has a normal distribution,…

A:

Q: The average student loan debt for college graduates is $25,950. Suppose that that distribution is…

A: From the provided information, Mean (µ) = $25950 Standard deviation (σ) = $14900

Q: For a particular elevator, the average weight of a person who enters the elevator is 165.347 pounds…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: Police response time to an emergency call is the difference between the time the call is first…

A: Let "x" be the police response time to an emergency call in minutes.

Q: Police response time to an emergency call is the difference between the time the call is first…

A: Given given the response  variable follows a normal distribution x~N(μ,σ) μ=9.6 minuteσ=2.3 minute

Q: A waiterbelieves the distribution of his tips has a model that is slightly skewed to the left​, with…

A:

Q: response time to an emergency call is the difference between the time the call is first received by…

A: Let x denote the response time. From the available information, Population mean, Population…

Q: The switchboard in a Police law office gets an average of 5.7 incoming phone calls during the noon…

A: he switchboard in a Police law office gets an average of 5.7 incoming phone calls during the noon…

Q: A computer software package generates random numbers that are normally distributed with a mean and…

A: As per guidelines expert have to answer first three subparts only.