d. The standard deviation. Q5: A- Assuming there are 25% of measurement items are defective, if we choose a sample of 25 items. What is the probability of 4 defective items? a. Use Binomial distribution. b. Use Poisson distribution.
Q: The amount of pollutants that are found in waterways near large cities is normally distributed with…
A: As per our guidelines we are supposed to answer only 3 sub-parts of any question so I am solving…
Q: CNNBC recently reported that the mean annual cost of auto insurance is 951 dollars. Assume the…
A: Let X be the cost of auto insurance.Given,
Q: On a particular college campus, 30% of the students belong to a fraternity or sorority. If 46…
A: Followings are the Explanation of the question Let X be the Number of the students belong to a…
Q: Question1 A Mobile store in Amman is fixing mobiles the average number of the monthly repaired…
A: According to the answering guidelines, we can answer only three subparts of a question and the rest…
Q: 2. In a cat fish farm, the weight of cat fish is found to follow normal distribution with mean 1.2kg…
A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the mean…
Q: If a binomial distribution applies with a sample size of n= 20, find the values below. a. The…
A: (a) Obtain the probability of 5 successes. The probability of 5 successes is obtained below as…
Q: In an certain species of newt, offspring are born either green or black. Suppose that 45% of these…
A: The mean of the sampling distribution of the sample proportion. The standard deviation of the…
Q: CNNBC recently reported that the mean annual cost of auto insurance is 968 dollars. Assume the…
A: GivenMean(μ)=968standard deviation(σ)=259sample size(n)=36
Q: CNNBC recently reported that the mean annual cost of auto insurance is 968 dollars. Assume the…
A: GivenMean(μ)=968standard deviation(σ)=259sample size(n)=36
Q: The probability of flipping heads on a weighted coin is 65%. If the same coin is flipped 8 times and…
A: We are given 8 bernauli trails with only two possible outcomes head and tails. The probability of…
Q: If a binomial distribution applies with a sample size of n= 20, find the values below. a. The…
A: As per our guidelines we can solve first three sub part of question and rest can be reposted.…
Q: The average income in a certain region in 2013 was $67,000 per person per year. Suppose the…
A: Answer:- Given information, Mean, μ = 67000 Standard deviation, σ = 31000 Sample size, n = 100…
Q: CNNBC recently reported that the mean annual cost of auto insurance is 956 dollars. Assume the…
A:
Q: CNNBC recently reported that the mean annual cost of auto insurance is 1015 dollars. Assume the…
A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…
Q: d. a simple random sample of 40 auto insurance policies, find the probability that the average cost…
A: From the information, given thatlet X denotes the cost which follows normal distribution with the…
Q: The weight of luggage carried onto a plane by passengers is normally distributed with a mean of 30…
A: Let X be the The weight of luggage carried onto a plane by passengers Mean=30, standard deviations…
Q: CNNBC recently reported that the mean annual cost of auto insurance is 1002 dollars. Assume the…
A:
Q: CNNBC recently reported that the mean annual cost of auto insurance is 984 dollars. Assume the…
A: As per guideline expert have to answer first question only dear student please upload other parts…
Q: Suppose the weight of dogs is normally distributed with a mean of 35 pounds and a standard deviation…
A: Given, Mean = 35 Standard deviation = 5 The objective is to find the probability a dog weighs…
Q: The amount of pollutants that are found in waterways near large cities is normally distributed with…
A:
Q: CNNBC recently reported that the mean annual cost of auto insurance is 977 dollars. Assume the…
A: Let X be the random variable from normal distribution with mean (μ) = 977 dollars, standard…
Q: The amount of pollutants that are found in waterways near large cities is normally distributed with…
A:
Q: The amount of pollutants that are found in waterways near large cities is normally distributed with…
A:
Q: The amount of coffee that people drink per day is normally distributed with a mean of 17 ounces and…
A: as per our company guidelines we are supposed to answer only first 3 sub-parts. Kindly repost other…
Q: According to a study done by UCB students, the height for Martian adult males is normally…
A: A continuous random variable X is said to follow Normal distribution with parameters μ and σ2 if its…
Q: CNNBC recently reported that the mean annual cost of auto insurance is 999 dollars. Assume the…
A: Hello! As you have posted more than 3 sub-parts, we are answering the first 3 sub-parts. In case…
Q: 42) The lengths of pregnancies are normally distributed with a mean of 270 days and a standard…
A: According to the given information in this questionWe need to answer two parts
Q: The amount of pollutants that are found in waterways near large cities is normally distributed with…
A:
Q: The percent fo Coloradans that own a Subaru is 56%. If you were to take a random sample of size 70,…
A: We have given that, Let X be the random variable from binomial distribution with probability (p) =…
Q: The average income in a certain region in 2013 was $61,000 per person per year. Suppose the standard…
A: [Standard deviation of sample mean =Standard error]Excel command to find P(z<1) is…
Q: CNNBC recently reported that the mean annual cost of auto insurance is 1042 dollars. Assume the…
A: As per bartleby guideline expert have to answer first three subpart only dear student please upload…
Q: CNNBC recently reported that the mean annual cost of auto insurance is 991 dollars. Assume the…
A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…
Q: Salaries of a city follows a normal distribution with average salary of $1 million. Assume that…
A: sample size(n)=60Mean()=1standard deviation()=0.1
Q: CNNBC recently reported that the mean annual cost of auto insurance is 1050 dollars. Assume the…
A: As per our guidelines we are suppose to answer only three sub parts.Sample of…
Q: According to a study done by UCB students, the height for Martian adult males is normally…
A: Given Mean=64 Standard deviations=2.4
Q: About 73% of the residents in a town say that they are making an effort to conserve water or…
A: Population proportion(p)=0.73sample size(n)=110
Q: According to a study done by UCB students, the height for Martian adult males is normally…
A: The height for martin adult males is normally distributed. Mean (μ ) = 67 inches Standard deviation…
Q: The average income in a certain region in 2013 was $78,000 per person per year. Suppose th standard…
A:
Q: deviation 4. About 10% of people in the United States do not wear a seat belt. Suppose we plan to…
A:
Q: C recently reported that the mean annual cost of auto insurance is 1017 dollars ion is 249 dollars,…
A: Given data,Mean μ=1017Sd σ=249n=37
Q: Private nonprofit four-year colleges charge, on average, $26,521 per year in tuition and fees. The…
A: Given information Mean μ = $26521 Standard deviation ? = $7011 a) X ~ N(26521,7011) b) Probability…
Q: a. What is the distribution of X? X - N( b. What is the distribution of ? T - N( c. What is the…
A: Let X denotes the annual cost of auto insurance. Given that mean = 968 and SD = 259 Sample size n =…
Q: Monthly cell phone bills for residents of a city have mean €60 and standard deviation €12. Simple…
A: Given that Mean = M = 60 , Standard deviation = SD = 12
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 4 images
- 1Assume a binomial probability distribution has p = .60 and n = 200.a. what are the mean and standard deviation?b. Is this situation one in which binomial probabilities can be approximated by thenormal probability distribution? Explain.c. what is the probability of 100 to 110 successes?d. what is the probability of 130 or more successes?e. what is the advantage of using the normal probability distribution to approximate thebinomial probabilities? Use part (d) to explain the advantage.According to a study done by UCB students, the height for Martian adult males is normally distributed with an average of 64 inches and a standard deviation of 2.4 inches. Suppose one Martian adult male is randomly chosen. Let X = height of the individual. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X- NO b. Find the probability that the person is between 64.4 and 67.3 inches. c. The middle 50% of Martian heights lie between what two numbers? Low: inches inches High:
- d) Which number of minutes per day represents the 70th percentile?  (Round to the nearest whole number as needed.)CNNBC recently reported that the mean annual cost of auto insurance is 956 dollars. Assume the standard deviation is 280 dollars, and the cost is normally distributed. You take a simple random sample of 38 auto insurance policies. Round your answers to 4 decimal places. a. What is the distribution of X? X - N( b. What is the distribution of T? T - N( c. What is the probability that one randomly selected auto insurance is more than $906? d. a simple random sample of 38 auto insurance policies, find the probability that the average cost is more than $906. e. For part d), is the assumption of normal necessary? O YesO NoAccording to a study done by UCB students, the height for Martian adult males is normally distributed with an average of 64 inches and a standard deviation of 2.3 inches. Suppose one Martian adult male is randomly chosen. Let X = height of the individual. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X - N( b. Find the probability that the person is between 62 and 63.9 inches. c. The middle 40% of Martian heights lie between what two numbers? Low: inches High: inches
- CNNBC recently reported that the mean annual cost of auto insurance is 968 dollars. Assume the standard deviation is 259 dollars, and the cost is normally distributed. You take a simple random sample of 36 auto insurance policies. Round your answers to 4 decimal places. a. What is the distribution of X? X - N( b. What is the distribution of ? T - N( c. What is the probability that one randomly selected auto insurance is less than $1015? d. a simple random sample of 36 auto insurance policies, find the probability that the average cost is less than $1015. e. For part d), is the assumption of normal necessary? O YesO No3. Women's shoe sizes are (approximately) normally distributed, with an average size of 8.076 and a standard deviation of 1.468. You work at Vogue Magazine, and would like to interview some women about how shoes fit. You take a random sample of 10 women. What is the probability that the 10 women you sampled had an average shoe size that is between a 6 and a 9?Private nonprofit four-year colleges charge, on average, $26,168 per year in tuition and fees. The standard deviation is $6,656. Assume the distribution is normal. Let X be the cost for a randomly selected college. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X - N( b. Find the probability that a randomly selected Private nonprofit four-year college will cost less than 24,347 per year. c. Find the 74th percentile for this distribution. $ (Round to the nearest dollar.)
- The amount of pollutants that are found in waterways near large cities is normally distributed with mean 9.5 ppm and standard deviation 1.7 ppm. 37 randomly selected large cities are studied. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X - N( b. What is the distribution of ? ¤ - N( c. What is the probability that one randomly selected city's waterway will have more than 9.8 ppm pollutants? d. For the 37 cities, find the probability that the average amount of pollutants is more than 9.8 ppm. e. For part d), is the assumption that the distribution is normal necessary? O NoO Yes f. Find the IQR for the average of 37 cities. Q1 = ppm Q3 = ppm IQR: ppm24)The lengths of pregnancies are normally distributed with a mean of 268 days and a standard deviation of 15days. a. Find the probability of a pregnancy lasting 309 days or longer. b. If the length of pregnancy is in the lowest 3%,then the baby is premature. Find the length that separates premature babies from those who are not premature.
