Analysis of the number of tourists visiting Old Fort William reveals that the annual number of visitors over the past 40 years is normally distributed with a mean of 60,000 and a standard deviation of 10,000. Using this information, calculate the probability that in any given year, the number of visitors was less than 80,000.

Q: The annual salaries for people in a particular profession are known to be normally distributed with…

A: Given that the annual salaries for people in a particular profession are known to be normally…

Q: The cost of unleaded gasoline in the Bay Area once followed (approximately) a normal distribution…

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Q: deviation is 50 litres (and is normally distributed), what is the probability that a household will…

A: Let X be the random variable from normal distribution with average or mean (μ) = 210 liters standard…

Q: According to a recent survey, the salaries of entry-level positions at a large company have a mean…

A: The given mean is $40,756 and standard deviation is $8,000.

Q: A study by Hershey's indicated that Americans consumed an average of 12.4 pounds of chocolate per…

A: Given that  X~N( μ = 12.4 , ? = 3.9) μ = 12.4 , ? = 3.9 Z-score =( x - μ )/?

Q: The salary for workers at a company are normally distributed with a mean of $60,000 and a standard…

A: # Given: salary of workers follow normal distribution with mean mu=$60000 and standard deviations…

Q: Suppose a die is rolled twice and let A = {first toss is a prime}    C = {second toss is a 4} Find…

A: # Here Given that a die is rolled twice and     A ={ first loss is prime}   B = { second toss is 4}

Q: Let μ be the mean annual salary of Major League Baseball players in 2002. Assume that the standard…

A: From the provided information, Standard deviation (σ) = 99000 Sample size (n) = 50

Q: The weekly salaries of teachers in one state are normally distributed with a mean of $980 and a…

A: Let, X=The weekly salaries of teachers in one state  Given that X is normally distributed with a…

Q: builtrite has calculated average weekly daily sales to be 80000 with a standard deviation of 12000.…

A: Mean()=80000standard deviation()=12000 one store manager made a bet with another store manager that…

Q: The weekly amount spent by an event management company for travel has approximately a normal…

A: From the provided information, Mean (µ) = $2500 Standard deviation (σ) = $400 Let X be a random…

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

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Q: The final exam scores in a statistics class were normally distributed with a mean of 63 and a…

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Q: The spending at Target is distributed normally with a mean spending of $45.67 and a standard…

A: According to the provided information, mean = $45.67  standard deviation = $5.50

Q: The average number of pounds of red meat a person consumes each year is 196 with a standard…

A: We are given,μ = 196σ = 22n = 60

Q: The amount of daily sales of a candy shop in weekdays is approximately normally distributed with a…

A: Let us denote: X=the amount of daily sales of a candy shop in weekdays Given that X follows a normal…

Q: A set of final examination grades in an introductory statistics course is normally​ distributed,…

A: Given that, A set of final examination grades in an introductory statistics course is normally​…

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

A: It is given that the ratings are normally distributed with mean 200 miles and standard deviation 50.

Q: The annual income for a sample of 450 part-time students is normally distributed with a mean income…

A: Given that.   X~N( μ , ?)   μ=31000 , ?=3000   Z-score =( x - μ )/?

Q: Incomes for a certain profession are normally distributed with a mean of $64,745 and standard…

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Q: The lengths of pregnancies are normally distributed with a mean of 266days and a standard deviation…

A:

Q: According to a recent survey, the salaries of entry-level positions at a large company have a mean…

A: Given: μ=41750σ=8000

Q: approximately

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Q: These babies will have a mass of less than how many pounds?

A: Given that masses of newborns are normally distributed with a mean of 6.6 lbs. and a standard…

Q: he average number of minutes per week that teenagers spend texting is 240.0 . Assume the standard…

A: Given data, μ=240σ=72If n=64P(230<X<250)=?

Q: The average sale price (online) for a certain brand of professional mountain bike is approximately…

A: Given that, Population Mean (μ)=$4200Population standard deviation (σ)=$250 Let X denote the average…

Q: The average salary of recent graduates with bachelor’s degrees in chemical engineering is $53,600…

A: Population mean (μ): $53,600Population standard deviation (σ): $3,200Sample size (n): 30Sample mean…

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

A:

Q: The salary for workers at a company are normally distributed with a mean of $60,000 and a standard…

A: Given  Mean = 60000 Standard deviation = 9000 Sample size = 36 Z score formula = (x -mu)/s/√n

Q: The average age of our class is 22.3 years.  The standard deviation is 4.7 years.  If the variable…

A: Let X: Age of student. X~N(μ=22.2, σ=4.7)

Q: Data from the Bureau of Labor Statistics’ Consumer Expenditure Survey show that annual expenditures…

A: Given information- For the year 2001- Population mean, µ = $235 Population standard deviation, σ =…

Q: The weekly salaries of teachers in one state are normally distributed with a mean of $490 and a…

A: Given,Mean, μ = 490Standard deviation, σ = 45Let X be a random variable represents the weekly…

Q: Assume the credit card balances of younger college educated employed persons are normally…

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Q: A physical fitness association is including the mile run in its secondary-school fitness test. The…

A: According to the given information in this question We need to find the following probability

Q: suppose the walking step lengths of an adult males are normally distributed with a mean of 2.7 feet…

A: Given that  Mean=μ=2.7 Standard deviation=σ=0.3 Sample size=n=70 X~Normal(μ=2.7,σ=0.3)

Q: Find the probability that the mean of a randomly chosen sample of 25 students scores is between 72.3…

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Q: Based on research conducted by the government on people aged 25 to 34 years, on average, people in…

A:

Q: Scores on a recent NYS Standardized Exam were normally distributed with a mean of 77.6 and a…

A: LetX: scores on a recent NYS standardized exam X has normally distributed i.e. X~N(μ,σ)     where…

Q: Use counting arguments from the preceding chapter. The seven contenders in a horse race at Aqueduct…

A: Given that: Par none, Expect a Ship, All that Glitters, Senatorial Hope, Celera, Cliff Jumper, and…

Q: The length of songs in the Big Hair playlist of a Statistics professor's mp3 player varies from song…

A: a) The probability that the next song to be played is between 3.9 and 4.85 minutes long is 0.5321.b)…

Q: On a mathematics test in a high school, scores are normally distributed with a mean of 77 and a…

A: Given that.   X~N( μ , ?^2 )   μ=77     , ?=16.8   Z-score =( x - μ )/?

Q: Based on research conducted by the government on people aged 25 to 34 years, on average, people in…

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Q: What is the probability that a randomly selected student will drink less than the suggested amount…

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Q: According to a recent survey, the salaries of entry-level positions at a large company have a mean…

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Q: Find the probability that a randomly selected adult has an IQ greater than 136.4

A: Let X denote the IQ scores of adults. Given that X follows N(mean = 101.3, SD = 20.2), then  Z = (X…

Q: Suppose that the walking step lengths of adults are normally distributed with a mean of 2.4 feet and…

A:

Q: According to a recent survey, the salaries of entry-level positions at a large company have a mean…

A: According to a recent survey, the salaries of entry-level positions at a large company have a mean…