A state insurance commission estimates that 13% of all motorists in its state are uninsured. Suppose this proportion is valid. Find the probability that in a random sample of 50 motorists, at least 5 will be uninsured. You may assume that the normal distribution applies.

Q: The mean and standard deviation of a binomial probability distribution with n=25 and p = 0.20 are

A: p = 0.2 n = 25

Q: Suppose in a sample one number from a standard normal distribution, what is the probability it will…

A:

Q: For a normal population with µ = 100 and σ = 9, what is the probability of obtaining a sample mean…

A: According to the given information, we have Mean = 100 Standard deviation = 9 Sample size = 25

Q: What is the shape of a x ^ 2 distribution?

A: If Xi’s follows standard normal distribution for all i = 1, 2, .., n, then ΣXi2 follows chi square…

Q: A.What is the mean and standard deviation of the distribution? B.What is the probability that…

A: According to the answering guidelines, we can answer only three subparts of a question and the rest…

Q: 1. Is the graph shown a probability distribution of a discrete random variable? Why or why not?

A:

Q: Did high gas prices keep Americans from hitting the road this past summer? In a nationwide survey of…

A: Conditions for discrete probability distribution: The following requirements should be satisfied for…

Q: A normal distribution has μ = 20 and σ = 4.  What is the probability of randomly selecting a score…

A: Obtain the probability of randomly selecting a score greater than 25 from this distribution. The…

Q: Given a normal distribution with μ=50 and σ=4​, and given you select a sample of n=100​, What is…

A:

Q: Forty-two percent of primary care doctors think their patients receive unnecessary medicalcare…

A: From the provided information, 42% of primary care doctors think their patients receive unnecessary…

Q: According to a study, 39% of adult Americans believe that marriage is nowobsolete. A random sample…

A: Determine the sampling distribution of p. Sampling Distribution of Proportion: From the…

Q: The sampling distribution of the mean calculated from a sample of n measurements is the probability…

A: Sampling distribution : Sampling distribution can also known as a probability distribution of the…

Q: A normal distribution has μ = 80 and σ = 10.  What is the probability of randomly selecting a score…

A:

Q: Given a normal distribution with μ=101 and σ=25​, and given you select a sample of n=25​, What is…

A:

Q: There is a fixed number of trials in a geometric distribution. O true O False

A: The number of trials in a geometric distribution is not fixed. The experiment is performed until we…

Q: For a Uniform distribution with a low of 0 and a high of 25. Find the probability that a score is…

A: Solution: If X be the uniform random variable, then the probability density function of X is Let X…

Q: In a normal distribution with a u = 50 and o = 10, which of the following scores would have the…

A: The mean is 50 and the standard deviation is 10.

Q: a)If there are 350 people at a town meeting,Calculate the probability that the parking lot will be…

A:

Q: Statistics released by a reputable traffic safety organization show that on an average weekend…

A: The following information has been given: The probability of success is: p=110  =0.1 q=1-p  =1-0.1…

Q: According to a government study, 15% of all children live in a household that has an income below…

A: The binomial distribution gives the probability of number of successes out of n trials in a series…

Q: An immigration agent at Pearson Airport in Toronto could on the average process 120 entrants during…

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

Q: recent analysis of the number of rainy days per month found the following outcomes and…

A: Given that  Probability distribution table.  X 3 4  5 P(x) 0.40 0.20 0.40   We know  that…

Q: The lifetime of a cooling fan, in hours, that is used in a computer system has the Weibull…

A:

Q: A. What kind of distribution does X have? B. What is the probability that one passenger arrives in a…

A:

Q: in a binomial distribution, if n= 4 and p = 1/3 then the value of variance is?

A: Given:     n = 4 probability of success (p) = 1/3

Q: Given a normal distribution with μ=101 and σ=25​, and given you select a sample of n=25​, What is…

A:

Q: residential real estate in new york rents for an average of $44 per square foot, for a certain…

A:

Q: Given a normal distribution with μ=103 and σ=15​, and given you select a sample of n=9​, What is…

A: Given : A normal distribution with μ=103 and σ=15​ n = 9

Q: What is the probability of selecting a score greater than 50 from

A: Given μ= 55 and a σ=5.

Q: 2. It is reported that 54% of college students take on debt to pay for their education. a) Suppose a…

A: Given data: 54% of college students take on debt to pay for their education. I.e ; p = 0.54 Sample…

Q: Given a normal distribution with μ=50 and σ=4​, and given you select a sample of n=100​,   There…

A:

Q: Given a normal distribution with μ=100 and σ=8​, and given you select a sample of n=16​, What is the…

A: It is given that μ=100 and σ=8. The sample size n=16.

Q: A Statistics show that on an average weekend night, 1 out of every 10 drivers on the road is drunk.…

A: Given data, n=400 p=110q=1-p=910 P(25<X<38)=?

Q: Given a normal distribution with μ=103 and σ=15​, and given you select a sample of n=9​, What is…

A: Given that μ = 103 σ = 15 we need to calculate the P ( X < 92 )

Q: A company is studying the number of monthly absences among its 125 employees. The following…

A: Given data

Q: It is assumed that requests to a server with an average of 16 requests per minute are poisson…

A:

Q: A Tim Horton's has recently opened up in Edmonton. It is observed that, on any given morning, the…

A:

Q: Which normal distribution curve is the most skewed, according to the following skewness:

A: Here rule for skewness rage Less -1 or greater than 1 then distribution is highly skewed  If range…

Q: Given a normal distribution with μ=50 and σ=4​, and given you select a sample of n=100​, What is…

A: Given : μ = 50σ = 4n = 100

Q: 4. According to a 2019 Federal Reserve report, 54% of U.S. young adults who went to college took on…

A:

Q: A large car dealership claims that 47% of its customers are looking to buy a sport utility vehicle…

A: Given,sample size(n)=61sample proportion(p^)=0.40population proportion(p)=0.47

Q: A private hospital gets an average of 14 hospital admissions per week in its emergency room (ER).…

A: ## As per guidelines answering only 3 subparts of the question repost again by specifying the…

Q: Given a normal distribution with μ=103 and σ=15​, and given you select a sample of n=9​, What is…

A: GivenMean(μ)=103standard deviation(σ)=15sample size(n)=9

Q: Bill contends that people spend between 0 and 80 minutes each day listening to music, and he insists…

A: Given: Hadey states that it doesn't make sense in believing that goats are likely to spend more…

Q: Given the probability distribution table, what is the expected value and variance of the discrete…

A: The expected value is defined as E(X) = ∑x.P(X) And variance is calculated as Var(X) = E(X2) -…

Q: Given a normal distribution with μ=100 and σ=8​, and given you select a sample of n=16​, What is the…

A: Solution: From the given information, X follows normal distribution with mean µ=100 and a standard…

Q: Given a normal distribution with μ=45 and σ=5​,     What is the probability that X>37​?…

A:

Q: Given a normal distribution with μ=50 and σ=4​, and given you select a sample of n=100​, What is…

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.