Aaliyah is 74 years old. Based on a normal distribution with mean 47.8 years and standard deviation 12.6, what is the probability that a skydiver will be 74 years of age or less? 0.9974 0.9812 0.0026 0.0605 OOO

Q: New York City is the most expensive city in the US for lodging. The mean hotel room rate is $204 per…

A: given datanormal distributionμ = 204σ = 55P(x>225) = ?

Q: What probability falls within one standard deviation of the mean?

A: It is given that the statement about to the probability falls within one standard deviation of the…

Q: Assume that women's heights are normally distrubuted with a mean of 63.6 inches and a standard…

A: From the given information, the mean is 63.6 and the standard deviation is 2.5.

Q: A running back on the Spartans football team gains an average of 3.5 yards per carry with a standard…

A:

Q: The monthly utility bills in a city are normally distributed with a mean of $121 and a standard…

A: Given : The monthly utility bills in a city are normally distributed with a mean of $121 and a…

Q: The weight of small dogs can be modelled by a normal distribution with a mean weight of 8.4 kg and a…

A: The provided information is:

Q: The average movie ticket cost $18.76 and the population standard deviation is $2.51. Assume movie…

A: Given Information: Mean μ=18.76 Standard deviation σ=2.51 To find the probability that a random…

Q: On average, people spend 34 minutes complaining on Mondays.  The standard deviation is 3.67 minutes.…

A: On average, people spend 34 minutes complaining on Mondays.  The standard deviation is 3.67 minutes.

Q: Deforestation along the Sierra Madre mountains have been especially notorious. The average number of…

A: It is given that  Mean, μ = 4115 Standard deviation, σ = 610 Z-Score, Z = ( X - μ )/σ

Q: If the mean height of a population of students is 68 inches with standard deviation 3 inches, what…

A: Given that      The mean height of a population of students is 68 inches with standard deviation 3…

Q: 44%  of students in a class have black hair. If 66 students are chosen at random, what is the…

A:

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: The mean annual cost to attend a attend a college is $44,324. Assume the distribution of annual…

A:

Q: the weights of 8000 men follows a normal distribution with mean 67 kg. and the standard deviation 10…

A: We want to find probability for given data

Q: The mean of a normal probability distribution is 600; the standard deviation is 20. About 68% of…

A: given data normal distribution population mean  = 600 population sd = 20

Q: The population mean is 20 inches and population standard deviation is 4 inches. A random sample of…

A: mean = 20 s =4

Q: Full time Ph.D. students receive an average of $13,537 per year. If the average salaries are…

A: Introduction: Define X as the random variable of interest here, which denotes the salary of the…

Q: Birth weights of babies born to full-term pregnancies follow roughly a normal distribution. At…

A: Let X be the random variable from normal distribution with mean (μ) = 7 pounds, standard deviation…

Q: Suppose the probability a patient will recover from a disease following medication is 0.7. In a…

A: Given : the probability a patient will recover from a disease following medication is 0.7.  In a…

Q: approximately

A:

Q: The commuting time for a student to travel from home to a university campus is Normally distributed…

A: Let X be the commuting time for a student to travel from home to a university campus is Normally…

Q: If the normal operating life of a car is considered to be 150,000 miles, with a standard deviation…

A: The probability that a car will last 200,000 miles is calculated as follows:

Q: The average age of accountants is 43 years, with a standard deviation of 5 years. If an accounting…

A: From the given information,   Mean = 43 Standard deviation = 5 Sample size = 30

Q: Find the probability that an observation taken from a standard normal population will be more than…

A: We have to find given probability..

Q: The mean of a normal probability distribution is 600; the standard deviation is 20. About 95% of…

A: GivenMean(μ)=600standard deviation(σ)=20

Q: The electric bills for all households in a large city have the normal distribution with a mean of…

A:

Q: The average amount customer spend yearly at a local grocery store is $635.55 .  Assume the variable…

A: Mean(µ) = $635.55Standard deviations (σ) = $94.41X ~ N (µ, σ )= N(635.55,94.41)

Q: For any hypothesis test: a) Define 2-sided and 1-sided hypotheses and give the steps involved in…

A: Hypothesis test : Hypothesis test is a statistical hypothesis in which testing is performed to…

Q: The number of bacterial colonies on a petri dish can have an average of 2.5 per cm2 Define the…

A: Given: The number of bacterial colonies on a petri dish can have an average of 2.5 per cm.

Q: In a Normal distribution, the average is 45 and standard deviation is 12. What is the probability…

A:

Q: he weight of checked bags for a major airline can be modeled by a normal curve with mean 35.6 pounds…

A: Ans#- Given, the weight of checked bags for a major airline can be modeled by a normal curve with…

Q: IQ scores are normally distributed with a mean of 100 and standard devation of 15. find the…

A: Let us consider, IQ scores are denoted by X which are normally distributed with a mean of 100 and…

Q: The average height of women is 64 inches. The standard deviation is 2 inches. The heights have a…

A: Let, X= height of women  Given that X follows normal distribution with mean= 64 inches and standard…